IPR100 /IPR110Plus. Single-Channel VoIP Interface. Product Manual

Transcription

1 IPR100 /IPR110Plus Single-Channel VoIP Interface Product Manual

2 IPR100 /IPR110Plus Single-Channel VoIP Interface Product Manual Omnitronics Pty Ltd. All rights reserved. ABN: Product Notice No part of the contents of this publication may be reproduced or transmitted in any form or by any means without the prior written consent of Omnitronics. Information contained in this document is provided solely to enable use of Omnitronics products. Omnitronics assumes no liability whatsoever for neither technical or editorial errors that may appear in this document nor does it make a commitment to update the information contained herein. Omnitronics retains the right to make changes to this information at any time, without notice. This manual describes features that are common to most installations as well as optional features available separately. Some features may not be available on your installation. Trademarks Microsoft, Windows, and Internet Explorer are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. Firefox and the Firefox logos are trademarks of Mozilla Foundation. Google and Chrome are either trademarks or registered trademarks of Google Inc. NGT is a registered trademark of Codan Limited. Freescale and Coldfire are either trademarks or registered trademarks of Freescale Semiconductor. Motorola and SMARTNET are registered trademarks of Motorola, Inc. DX-Altus, IPR100, IPR110Plus, RediTALK-Flex, IPRMon are trademarks of Omnitronics Pty Ltd. Technical Support If you require additional information or assistance with installation or configuration of this product, please contact our Technical Support at the contact details shown below. When contacting Omnitronics for support, please have your Omnitronics product serial number, system hardware and software versions available if possible. Australia (Head Office) Omnitronics Pty Ltd 27 Sarich Court Osborne Park, WA 6017 Australia Australia (East Coast) Omnitronics Pty Ltd 301 Coronation Drive Milton, QLD 4064 Australia North America (USA) Omnitronics, Inc S. Harbor City Blvd, Ste #328 Melbourne, FL USA P: F: P: F: P: F: +1 (904) (904) support@omnitronics.com.au support@omnitronics.com.au servicedesk@omnitronicsworld.com Documentation Feedback Omnitronics welcomes your feedback regarding this user manual. To provide suggestions for improving the Omnitronics documentation, please your comments to documentation@omnitronics.com.au. Please include the Omnitronics product name and version with your correspondence. Omnitronics will carefully consider all feedback for future improvements to Omnitronics documentation and software. Date: December 2018 Document Number: MNL ii

3 Document Revision History Rev Date Description /2012 Original publication / 2012 Updated Introducing the IPR100 and IPR110Plus. Updated Configuring the Hardware. Updated Configuring the Network Settings. Updated Basic Network Settings. Updated Basic Settings. Corrected Table /2013 Updated Basic Settings /2013 Updated Compliance Notice /2013 Updated Simple Network Management Protocol (SNMP) Settings. Updated Session Initiation Protocol (SIP) Settings. Updated Simple Network Management Protocol (SNMP). Updated description of SIP Registrar Server. Deleted VoIP/RTP Group. Updated Frequently Asked Questions /2013 Updated Figure 63 in section Advanced Radio/Handset Settings. Added BUSY sense invert option in section Busy Validation. Updated list of supported radios in section Channel Change Mode /2013 Updated channel numbers in section Channel Change Mode /2014 Updated Session Inititiation Protocol (SIP) Settings. Updated Compliance Notice. Updated Frequently Asked Questions /2014 Updated Omnitronics Dispatch Console Interface to P25 Base Station using MDC /2014 Updated Frequently Asked Questions. Deleted Getting Started and inserted Connecting to the IPR /2015 Updated Getting Started. Updated SELCALL (Selective Calling) to correct description for Number of Tones. Deleted Connecting to the IPR /2015 Updated Figure 43. Added Enable half-duplex mode. Updated Figure /2016 Added Compatible SIP Servers and Devices. Added Paging Tones. Updated Network Requirements. Updated Specifications. Updated Notice of Compliance. Updated FAQ 18. iii

4 Rev Date Description /2017 Updated What is the IPR?. Updated Features. Updated Viewing the System Status. Updated Advanced Settings. Updated Advanced Network Settings. Added Tail Sound. Updated SIP Settings. Updated Voice Activity Detection (VAD). Updated Connection Control. Updated Compatible SIP Servers and Devices. Updated Channel Change Mode. Updated Communicating with DX-Altus Radio Dispatch System. Updated Specifications. Updated Frequently Asked Questions /2017 Added Tail Sound /2017 Updated "User Accounts and Logging In". Updated "Layout of the Configuration Interface". Updated "Resetting the Configuration to Default Settings". Updated "Changing the Supervisor Password. Updated "VoIP/RTP Configuration". Updated "Switching to Advanced Mode". Updated "Advanced Settings". Updated "CTCSS Settings". Deleted "Multicast Domain Name System (mdns)" from Appendix A. Updated Advanced Configuration /2018 Updated Introduction. Updated Channel Change Parameters to include new radio types. Please report any errors or omissions in this document to Omnitronics so that such errors or omissions may be corrected in later issues (see Documentation Feedback on page inside front-cover). iv

5 Contents Introduction 1 What is the IPR?... 1 Features... 2 Front Panel... 3 Handset Port Connector... 4 Back Panel... 4 Power Connectors... 5 Serial Port Connector... 5 Ethernet Port Connector... 5 Radio Port Connector... 6 Advanced Functionality... 6 Session Initiation Protocol (SIP)... 6 SIP Interoperability... 7 Bandwidth Optimization... 7 Speed Dial... 7 Remote Configuration... 7 Tone Signaling... 8 Encryption... 8 Firmware Upgrades... 8 Related Documentation... 8 Documentation Conventions... 9 Getting Started 11 Hardware Setup Identifying the Hardware Revision Contents v

6 Differences between Hardware Revisions Errata for VoIP Controller 0502A1 Revision E&M Configuration Connecting to the Network Windows Mac OS X or Linux Resetting to Factory Default Settings Basic Configuration 27 What is the Configuration Interface? Using the Configuration Interface Discovering the IPR on the Network User Accounts and Logging In Layout of the Configuration Interface Configuration Status Saving Configuration Settings Restarting the IPR Device Resetting the Configuration to Default Settings Logging Out Viewing the System Status Current Status SIP Status Dynamic DNS Status Configuring the Basic Network Settings Basic Network Settings Using a DHCP Server Changing the Supervisor Password Backing up and Restoring the Configuration Backing up the Configuration to a File Restoring the Configuration from a File vi Contents

7 Radio/Handset Settings Basic Settings VoIP/RTP Configuration Basic Settings Advanced Configuration 49 Switching to Advanced Mode Advanced Network Settings Advanced Settings Dynamic DNS Using a DHCP Server SNMP Settings Advanced Radio/Handset Settings Advanced Settings Busy Validation Trunk Radio Audio Delay Mode Tail Sound Advanced VoIP/RTP Settings Advanced Settings Supported Codecs VoIP Conference Mode Advanced SIP Configuration SIP Settings Voice Activity Detection (VAD) Connection Control Remote Device List Compatible SIP Servers and Devices Tone Signaling Settings DTMF/SELCALL EIA Tone Remote Contents vii

8 Guard Tone MDC Analog P25/MDC Paging Tones SELCALL/DTMF Settings General DTMF SELCALL (Selective Calling) CTCSS Settings Tone Detection Local Keying and Tone Transmission Enabled Frequencies Serial Data Settings Serial Pass-Through Mode Serial Port Parameters Multi-Drop Mode Serial Mode Settings Serial Data Pass-Through Mode Channel Change Mode Changing the Passwords of User Accounts Supervisor User Account Technician User Account Limited User Account Diagnostics, Statistics, and Upgrading the Firmware 105 Diagnostics Fault Reporting with the Diagnostic Report Statistics Current Status Statistics viii Contents

9 Connections Upgrading the Firmware Serial Monitor 117 Serial Monitor Overview Serial Communications Setup Using Recovery Mode Using the Serial Monitor Resetting to Factory Default Settings Application Examples 123 Remote Radio Access Using Static IP Addressing (VPN) Remote Radio Access Using Dynamic IP Addressing Line Replacement Using VOX Communicating with DX-Altus Radio Dispatch System Radio Dispatch Using SIP Connections Connecting Radios via ADSL and the Internet Configuring the Network Connecting via ADSL and the Internet with Dynamic DNS Connecting Radios using Multicasting Connecting Multiple IPR Devices Using Conference Mode Peer-to-Peer (No Central Server) Bridge Server Dispatch Server Multicast Gateway IPR110Plus Radio to SIP/PSTN Gateway Incoming Calls Outgoing Calls Omnitronics 960 Console to Radio with In-band Keying Omnitronics Dispatch Console to P25 Basestation using MDC Contents ix

10 Technical Reference 165 IP Addressing via the Internet and Local Area Networks IP Addressing Types of Remote Addressing Internet Port Numbers Multicast Addressing Domain Name System (DNS) Dynamic Addressing Using a DHCP Server Network Address Translation (NAT) Dynamic Domain Name System (Dynamic DNS) VoIP Functionality Network Requirements Real Time Protocol (RTP) Session Initiation Protocol (SIP) Encryption Simple Network Management Protocol (SNMP) Overview SNMP Functions Common to all Omnitronics SNMP-Enabled Devices Other Useful SNMP Functions Specifications 183 Specifications Notice of Compliance Troubleshooting and FAQ 187 Connectivity Problems Ethernet Cable Connections Network Settings Cannot Login to the Configuration Interface Test the Connectivity to your Device x Contents

11 Configuration Problems Device Continually Restarts Cannot Hear Audio from the Other Devices VoIP Links Not Maintaining Connection Radio Does Not Transmit Busy Indicator on the Console does not illuminate Audio is Echoed Back from the Remote End Frequently Asked Questions Glossary 199 Index 205 Contents xi

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13 Introduction This manual provides information about installing, configuring, and troubleshooting the IPR100/IPR110Plus Single-Channel VoIP Interface products. What is the IPR? The Omnitronics IP Remote (IPR) family of products is designed to provide Voiceover-IP (VoIP) extensions for analog radio equipment. These products allow transceivers to be remotely controlled over any IP network link. Both the IPR100 and IPR110Plus are part of the IPR product family and provide single-channel VoIP communications with a local handset/console port. Figure 1 shows the front view of the IPR110Plus (IPR100 is similar). The front panel provides status indicators and a Handset port for interfacing to an Omnitronics handset or console. Power LED VoIP Link LED Run LED Eth RX LED Serial LED Eth Link LED PTT LED 100M LED Mute LED Figure 1. IPR110Plus front view Handset port These products allow you to: Create back-to-back IP links between several radios using point-to-point or point-to-multipoint communications. Provide remote control and monitoring of a single radio from an operator s handset or console using the handset port on the front panel. Connect a radio channel to Omnitronics VoIP-based radio-dispatch systems such as DX-Altus, RediTALK, or 960SIP. In addition to the single-channel IPR100 and IPR110Plus, the IPR product family also includes the four-channel IPR400. IPR100/IPR110Plus Product Manual 1

14 Features The IPR100 and IPR110Plus both provide the following features: Powered from a 12 volt DC plug pack Connection to both transceivers and radio handsets Support for CTCSS, SELCALL, and DTMF over highly compressed links Support for CTCSS as data to minimise bandwidth usage VoIP technology and multi-drop capability for operator handsets Multicast addressing support Multiple voice codecs for compression 10/100-BaseT Ethernet port via US Modular connector 4-Wire+E&M signals on Radio port compatible with 619 Audio Bridges Isolated PTT control using relay contacts and isolated COS input opto-coupler Voice Activity Detection (VAD) with silence suppression for bandwidth efficiency Software attenuation of Radio port levels Compatibility of handset port with Omnitronics 960 Handsets and Consoles Supports MPT radios via RS-232 port Status and diagnostic LED indicators on front panel Software configurable and firmware upgradeable via web interface Static or dynamic IP address configuration Optional voice encryption with user configurable key Supports incoming SIP connections from Omnitronics products Interfaces to radios that do not provide a COS output Secure communications using AES encryption (Australia model only) Interfaces to Smartnet type trunk radios via audio delay The IPR110Plus is an enhanced version of the IPR100 and provides the following additional features: Built-in support for RS232-based radio channel-change control Optional stronger encryption (AES with a key length of 256 bits: Australia model only) Originate and receive SIP calls Receive and transmit MDC1200 signaling information Translate MDC1200 information to and from selcall tone sequences as well as in-band tones Receive and transmit EIA Tone Remote sequences Radio-to-phone gateway for connection of radio to SIP phone or PSTN Control channel-change compatible radios with Omnitronics VoIP-based radiodispatch systems such as DX-Altus, RediTALK, or 960SIP The IPR110Plus also supports interoperability with: Hardware SIP Phones Software SIP phones SIP Servers Telephone PBX systems with SIP compatibility 2 Introduction

15 Front Panel Figure 2 shows the front panel of the IPR110Plus (IPR100 is similar except for the product name). Figure 2. Front panel of IPR110Plus All LED status indicators are green except for the red power indicator and the red PTT indicator. The function of each LED is described below. LED LED Activity Description Power Solid red Power is supplied to the device. Off Power is not supplied to the device. Run Blinking green LED blinks slowly when the device is starting up and initializing. Serial Blinking green Blinking green (fast) Off LED blinks faster when device is operational. Serial data is transmitted over the serial connection. No serial data is transmistted over the serial connection. PTT Solid red Handset mode: Indicates PTT button on handset is pressed. Radio mode: Indicates PTT output on Radio connector is active. Off Handset mode: PTT button on handset is not pressed. Radio moder: PTT output on Radio connector is not active. Mute Solid green Handset mode: Indicates an active Mute (Busy) signal is output on the Handset port. Radio mode: Indicates an active Mute (Busy) signal is received on the Radio port. Off Handset mode: Indicates Mute (Busy) signal is not output on the Handset port. Radio mode: Indicates Mute (Busy) signal is not received on the Radio port. 100M Solid green Ethernet interface is connected at 100Mbps. Off Ethernet interface is connected at 10Mbps. Eth Link Solid green Ethernet network is connected. Off Ethernet network is not connected. Eth RX Blinking green Data is transmitted over the Ethernet connection. VoIP Link Off Solid green Off Data is not transmitted over the Ethernet connection. VoIP connection is established. VoIP connection is not established. IPR100/IPR110Plus Product Manual 3

16 Handset Port Connector The Handset port on the front panel of both the IPR100 and IPR110Plus is a 6-way US Modular type and provides half-duplex audio, PTT, and Busy signals. This port provides a balanced, half-duplex, connection to an Omnitronics 960 Handset or Console. Multiple peripherals can be attached to the handset port allowing a number of operators to share a single radio. Pin Name Description 1 Busy Active when audio is output by the IPR100 on Audio A and Audio B. When active, Busy set to Vin = 12Volts. 2 PTT Active when audio is input via Audio A and Audio B from the Handset. Connect to Ground to activate PTT. 3 Gnd Ground (0 Volts). 4 Audio A Audio input/output. 5 Audio B Audio input/output. 6 Vin Supply voltage to power handset. Back Panel Figure 3 and Figure 4 show the back panels for the different IPR device hardware. Figure 3. Back panel of IPR device hardware (pre-revision 3) Figure 4. Back panel of IPR device hardware (revision 3 and later) Both panels are almost identical and provide connectors for the 4-Wire E&M Radio, Ethernet, and RS232 serial port, in addition to two power connectors. The only difference is the panel for revision 3 and later of the hardware includes the following additional features: Reset to Defaults button allows the device to be reset to the factory default values (this button is recessed behind the panel to prevent accidental reset). T-link (termination link) on the E&M configuration block connects or disconnects a resistor across the receive pins of the 4-Wire E&M Radio port allowing either 600-ohm balanced or high-impedance balanced audio depending on your radio device. 4 Introduction

17 Power Connectors The IPR products are powered from +12 Volts DC connected to either the two-pin green Phoenix connector or the 3.5mm socket. Phoenix connector Ground (0 Volts) is connected to the righthand pin which is denoted by the negative symbol (-) and positive 12 Volts is connected to the left-hand pin denoted by the positive symbol (+). The adjacent power socket is a 3.5mm socket with +12 Volts DC required on the centre pin. Serial Port Connector The RS232 serial connector located on the back panel is a 9-pin DB9 female connector and is used to provide a serial link over an IP network and to access the command-line Serial Monitor. Pin Name Description 1 Not Connected 2 TD Transmit Data 3 RD Receive Data 4 Not Connected 5 SG Signal Ground (0V) 6 Not Connected 7 CTS Clear to Send 8 RTS Request to Send 9 Not Connected Ethernet Port Connector The Ethernet network connector on the rear panel is an 8-way US Modular connector and is used to connect the IPR device to the network. Pin 10/100Base-T Signal 1 Transmit+ 2 Transmit- 3 Receive+ 4 Unused 5 Unused 6 Receive- 7 Unused 8 Unused IPR100/IPR110Plus Product Manual 5

18 Radio Port Connector The radio port provides an 8-way US Modular connector for 4-wire audio with E&M signaling. This port is balanced with 600-ohm transformer coupling. This provides isolation between the port and the radio and virtually eliminates any ground noise and induced signals. The E&M design can be configured for relay control or opto (voltage) input/output. Hardware links on the rear panel allow the interface control signals to be configured to source or sink power. The 4-Wire E&M Radio port is used to connect to a radio. This connector provides input and output audio and E&M control signals that may be configured by the adjacent links. The link settings for the E&M control signals are described in a later section (see E&M Configuration on page 14). Pin Name Description 1 Busy (Mute) 1a Input from radio 2 Busy (Mute) 1b Input from radio 3 RX1a Input audio from radio 4 TX1a Output audio to radio 5 TX1b Output audio to radio 6 RX1b Input audio from radio 7 PTT1a Output to radio 8 PTT1b Output to radio Advanced Functionality The IPR device includes sophisticated technology to efficiently transport audio over an IP network such as the Internet or your organization s local network. Session Initiation Protocol (SIP) The IPR100 and IPR110Plus use the Session Initiation Protocol (SIP) to dynamically connect and disconnect VoIP connections. This allows the IPR device to be used with Omnitronics dispatch and diagnostic software, which can remotely connect to an IPR device to monitor or transmit audio on demand. 6 Introduction

19 SIP Interoperability The IPR110Plus provides a complete SIP implementation that allows the IPR110Plus to interact with other devices that support SIP. Third party devices that support SIP include: Software based SIP phone (soft phones) allowing connection from a PC to an IPR device SIP Telephone Systems allowing access to the radio from a phone system SIP to PSTN Service Provider allowing access to the radio from any PSTN telephone Bandwidth Optimization The input audio is digitized and then compressed using a digital signal processor with one of several possible codec schemes. The compressed audio is then transported over IP The digital signal processor also provides Voice Activity Detection (VAD) and silence suppression. Together, these features enable the IPR products to make optimal use of the available IP bandwidth. With VAD and silence suppression audio packets are generated only whilst a person is actually talking. As soon as silence is detected, the transmission of data packets is suspended. VAD is also useful when connecting to communications equipment that does not provide a COS or Busy (Mute) output. It performs a VOX function, activating COS outputs while voice is present. Speed Dial The IPR110Plus can be configured with up to twelve speed-dial entries that can call any SIP address. Each speed-dial entry can be any SIP address, which could be another IPR device, a Windows computer running SIP software, or a telephone (via a SIP phone system). The speed-dial entries can be called from a radio by sending a configured DTMF or SELCALL sequence. Remote Configuration The IPR100 and IPR110Plus can be configured within the LAN, WAN, or Internet environment, using a web browser. Two configuration modes ae provided: Basic Mode, which provides access to the essential settings required to get two IPR products communicating, and Advanced Mode, which provides access to all product features. IPR100/IPR110Plus Product Manual 7

20 Tone Signaling The IPR device has been specifically designed to transport signaling schemes such as SELCALL, DTMF, and CTCSS over data networks. Analog signaling schemes will not work reliably through a data network when audio compression below 64kbps is used. Compression algorithms degrade audio tones resulting in poor signal decoding at the end stations. The IPR products overcome this problem by directly decoding analog signaling tones at the source and encoding them into data messages. Similarly, the reverse operation (analog encoding) is performed at the transmission end. Encryption Another major feature of both the IPR100 and IPR110Plus is the built-in security. The IPR100 and IPR110Plus support DES and AES 128-bit (Australia models only) encryption which can be enabled for all voice and data transmissions. Additionally, the IPR110Plus (Australia model only) provides AES-256-bit encryption for extra security. Firmware Upgrades The firmware in the IPR device is stored in Flash memory so it can be upgraded with a new version of the firmware when it becomes available. Omnitronics periodically provides upgrades to the firmware to resolve issues or to provide enhancements and additional functionality. For further information on upgrading the firmware, see Upgrading the Firmware on page 113. Related Documentation In addition to this manual, the following documents define the relevant protocols implemented in the IPR, which are all available in the form of RFC documents from the Internet Engineering Task Force (IETF): RFC RTP: A Transport Protocol for Real-Time Applications RFC RTP Profile for Audio and Video Conferences with Minimal Control RFC RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals RFC SIP: Session Initiation Protocol RFC An Offer/Answer Model with the Session Description Protocol (SDP) RFC SDP : Session Description Protocol The following book provides additional related information: Camarillo, Gonzalo. SIP Demystified. McGraw Hill, ISBN Introduction

21 Documentation Conventions The following documentation conventions are used in this manual. Convention Blue, underlined text: Bold text Italic text Italic narrow text Italic text in quotation marks: see What is the IPR? on page1. Monospace text Description Website addresses and addresses. Keys that are pressed, text typed into a UI element, such as a text box, UI elements that are clicked or selected, such as menu and list items, buttons, tabs, and check boxes. Text emphasis. File and directory names. Hyperlinked cross-references to other sections or paragraphs within the document. System output, configuration examples, commands and arguments. IPR100/IPR110Plus Product Manual 9

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23 Getting Started This section discusses the hardware requirements and includes the following: Hardware Setup Connecting to the Network on page 19 Resetting to Factory Default Settings on page 25 Hardware Setup The hardware has undergone several improvements and revisions: pre-revision 3 and revision 3 and later. The following information will help you determine the revision of your hardware without opening the enclosure. Identifying the Hardware Revision Using the web-based configuration interface, you can view the hardware revision information on the System Status configuration page (see Viewing the System Status on page 37). The back panel is different for the different hardware revisions. Figure 5 shows the back panel for pre-revision 3 and Figure 6 shows the newer back panel for revision 3 and later. Figure 5. Rear panel of IPR device (pre-revision 3) Figure 6. Rear panel of IPR device (revision 3 and later) Differences between Hardware Revisions IPR devices with hardware prior to revision 3.00 provide internal links that configure various options such as an audio compressor to limit the input audio level and emphasis/de-emphasis to improve the quality of the audio. Table 1 lists the various links (default settings are shown in bold type). IPR100/IPR110Plus Product Manual 11

24 Table 1. Internal links on the PC board Link Position Description LK1 Out Reserved LK2 Out Reserved LK3 LK4 LK5 LK6 LK7 In Out Supply 1.5V to debug interface Disconnect 1.5V from debug interface 1-2 Flat audio response applied to input - used with link LK7 2-3 De-emphasis applied to input - used with link LK7 1-2 Flat audio response applied to output - used with link LK6 2-3 Pre-emphasis applied to output- used with link LK6 1-2 Flat audio response applied to output - used with link LK5 2-3 Pre-emphasis applied to output- used with link LK5 1-2 Flat audio response applied to input - used with link LK4 2-3 De-emphasis applied to input - used with link LK4 LK8 For details, see section E&M Configuration on page 14 LK9 1-2 Compressor used with input audio 2-3 No compressor used with input audio The various types of links are labeled as shown in Figure 7. Pin 1 of header links and solder links is printed on the PCB and is located adjacent to the square pad (header links) or semicircle-shaped pad (solder links). E&M links are labeled accordingly on the back panel Figure 7. Header links, solder links, and E&M links 12 Getting Started

25 Figure 8 shows the function of the internal links in the audio path. IPR devices with revision 3.00 or later hardware do not require the audio compressor circuit or the emphasis/de-emphasis circuitry. Hence, the later revisions do not provide internal links, and therefore, you do not need to open the enclosure to set up the unit. Figure 8. Link functions in the audio path (pre-revision 3 hardware) The later revisions provide an additional jumper for the 600-ohm termination on the input to the radio port. This jumper is located on the 4-Wire E&M Radio port and is identified by the T label (see Radio Port Connector on page 6). When the T jumper is removed, the 600-ohm terminating resistor is out of circuit and the input becomes a high-impedance input greater than 10kΩ. Revision 3.00 of the hardware requires at least revision 5.00 of the firmware. Attempting to download an earlier revision of firmware will result in an error message. IPR100/IPR110Plus Product Manual 13

26 Errata for VoIP Controller 0502A1 Revision 1.10 For link settings on the IPR100 PCB 0502A1 revision 1.10, please refer to Table 2 and not to the PCB overlay. Table 2. Link settings for PC board 0502A1 Revision 1.10 Link LK5 2-3 LK6 2-3 LK7 2-3 LK8 2-3 All Links Position Description 1-2 Pre-emphasis in De-emphasis in Pre & De-emphasis out Note The configuration of the compression, pre-emphasis and deemphasis will apply to both the radio and the handset audio ports. E&M Configuration The following sections discuss how to interface the E&M control signals to various types of radio equipment using relay contacts and typical circuitry. The E&M signals are configured by the links on the back panel. Links A and B configure the BUSY (E) input and links C and D configure the PTT (M) output. If you are using hardware version 3 or later, another E&M option is available called the termination ( T ) link. This link connects or disconnects a resistive load across the receive pins of the 4-wire E&M radio port allowing the IPR device to accept either a 600-ohm balanced or unbalanced audio source depending on your radio device. The T-link settings are listed in Table 3. Table 3. Pin assignment for Termination T Link Pin Description 1-2 (default) Enables 600ohm balanced RX audio on the radio port 2-3 Enables high-impedance balanced RX audio on the radio port 14 Getting Started

27 M-Lead (PTT) Output Options (relays) Figure 9 shows the link configuration options for the M-Lead (PTT) output using links C and D. Figure 9. M-Lead (PTT) output options using relays Warning! Incorrect link settings can connect an external supply to ground causing damage to the equipment. IPR100/IPR110Plus Product Manual 15

28 M-Lead (PTT) Output Options (typical circuitry) Figure 10 shows the typical circuitry used for the M-Lead (PTT) output options using links C and D. Figure 10. M-Lead (PTT) output options with typical circuitry Warning! Incorrect link settings can connect an external supply to ground causing damage to the equipment. 16 Getting Started

29 E-Lead (Busy) Input Configuration (contacts) Figure 11 shows the link configuration options for the E-Lead (Busy) input using links A and B. Figure 11. E-Lead (Mute) configuration using contacts Warning! Incorrect link settings can connect an external supply to ground causing damage to the equipment. IPR100/IPR110Plus Product Manual 17

30 E-Lead (Busy) Input Configuration (typical circuitry) Figure 12 shows the typical circuitry used for the E-Lead (Busy) input options using links A and B. Figure 12. E-Lead (Mute) configuration options using typical circuitry Warning! Incorrect link settings can connect an external supply to ground causing damage to the equipment. 18 Getting Started

31 Connecting to the Network Omnitronics offers a system configuration service at the customer s request to configure the IPR device and other DX-Altus system components. If your device is preconfigured for your network, you can simply connect it to your network and start using it as is. You can skip ahead to the next chapter, 0, Basic Configuration, which explains how to use the configuration interface in case you want to make some changes to the configuration. When preconfigured, the product documentation supplied with the system will describe all of the static IP addresses used in the system including that of any IPR devices. However, if your device is not preconfigured, you will need to initially configure the basic network settings so that it can communicate on your network. The easiest way to configure the IPR device is to connect it directly to your computer s Ethernet port using a network cable. The IPR device is factory configured with a static IP address as follows: for devices with an even-numbered serial number for devices with an odd-numbered serial number If the IPv4 address of your computer does not have a similar address (i.e., an IP address starting with x), it will not be able to communicate with the device. In this case, you will need to change the IPv4 address of your computer temporarily to the same subnet as the IPR device. Once your computer and the IPR device are both on the same network, you can then login to the device s configuration interface to configure the network settings of the device to match your network. You can then restore the network settings of your computer. Using the Serial Monitor to Configure the Basic Network Settings If you do not know the IP address of your IPR device, you can use the Serial Monitor to configure the basic network settings such as the IPv4 address, subnet mask, and gateway address to match your computer network. Once you have configured the basic network settings, you can then log in to the device and use the built-in web server to configure the other settings. Using the Serial Monitor method is not recommended for non-technical users as it is primarily intended for diagnosing and resolving issues by system administrators and support engineers. For further information about using the Serial Monitor, refer to Using the Serial Monitor on page 120.) IPR100/IPR110Plus Product Manual 19

32 Windows This section provides step-by-step instructions for configuring the basic network settings of the IPR device using Windows 7. If you are using Windows 8.1 or 10, the steps will be similar. For Mac OS or Linux operating systems, see Mac OS X or Linux on page 25. Note To change the IP address of your Windows computer, you must be logged in with a user account that has administrator priviledges. Step 1: Determine the IP address of your computer You can determine the address of your computer with the following procedure. To determine the IP address of your computer 1 On the Start menu, click Control Panel. 2 Click Network and Internet to display the Network and Internet window. 3 On the Network and Internet window, click Network and Sharing Center. 20 Getting Started

33 4 Under View your active networks, click Local Area Connection to display the Local Area Connection Status dialog. 5 Click Details to display the Network Connection Details dialog. 6 Record the details for IPv4 IP Address, IPv4 Subnet Mask, and IPv4 Default Gateway, and then and click Close. IPR100/IPR110Plus Product Manual 21

34 Step 2: Change the IP settings of your computer If the IPv4 Address of your computer (see Step 1: Determine the IP address of your computer on page 20) starts with the numbers x and the IPv4 Subnet Mask is , your computer is using a compatible IP address. In this case, you can skip to Step 3: Connect the IPR device to the computer on page 23. To configure the IP settings on your computer 1 In the Local Area Connection Status dialog, click Properties to display the Local Area Connection Properties dialog. 2 In the This connection uses the following items list, select Internet Protocol Version 4(TCP/IPv4), and then click Properties to display The Internet Protocol Version 4 (TCP/IPv4) Properties dialog. 3 Under the General tab, select Use the following IP address and enter the following details: IP address is the static IP address to assign to your computer. Subnet mask is the subnet mask used by your router. Default gateway is the IP address of the default gateway. 4 Click OK. The changes will take effect immediately; it should not be necessary to restart your computer. 22 Getting Started

35 Step 3: Connect the IPR device to the computer This step connects the IPR device directly to your computer using an Ethernet network cable. 1 Apply power to the IPR device. 2 Connect the network cable from your computer to the Ethernet port on the back panel of the IPR device. The Eth Link LED should illuminate, and you should now be able to communicate with the IPR device. If this LED does not illuminate, it may indicate a problem with the network cable; and the computer will not be able to communicate with the IPR device until you correct the problem. Step 4: Configure the IPR device network settings This step uses the web-based Configuration Interface to configure the basic network settings of the IPR device. To configure the IPR device network settings 1 Start your web browser and type the IP address ( or ) of the IPR device in the address bar. To display the login page. 2 Click Log in to show the login dialog. 3 In the login dialog, type omni for the user name, and type ipr100 for the IPR100 or ipr110+ for the IPR110Plus password. 4 Click OK to log in. Note The password is case sensitive and must be typed in lowercase characters make sure the Caps Lock key is not active on your computer keyboard. IPR100/IPR110Plus Product Manual 23

36 The System Status page similar to the one below is displayed. 5 Click Network to display the Network Configuration page. 6 Configure the network settings to match the network settings of your computer network. Note For details on how to configure the network settings of the IPR device, refer to Configuring the Basic Network Settings on page Click Save to save the configuration. 8 Click Restart to restart the device. 9 Connect the network cable from the device to your network switch. The IPR device should now on same network as your system. Step 5: Restore the network settings of the computer Once you have configured the network settings of the IPR device, you can restore the network settings of your computer back to the original settings. Note If you did not change the network settings of your computer, you do not need to perform this step. Repeat Step 2: Change the IP settings of your computer on page 22 to restore the network settings of your computer back to its original settings that you recorded in Step 1: Determine the IP address of your computer on page 20. This time, however, you ll restore the IPv4 address, IPv4 Subnet mask, and the IPv4 Default gateway to the original settings. Congratulations! You have now configured the IPR device to communicate on your network, and you should now be able to connect to the IPR device using the original network settings of your computer. 24 Getting Started

37 Mac OS X or Linux For other operating systems, such as Mac OS or Linux, the same basic steps are necessary: that is, temporarily change the computer s IP address to one in the same subnet as the IPR device, such as x, then access the IPR device web-based configuration interface to configure the network settings of the IPR device, and then save the configuration and restart. Resetting to Factory Default Settings The new hardware has a Reset to Defaults button on the back panel that is used to reset the IPR device to factory default settings. This button is recessed to prevent accidental reset of the device. Use the following procedure to reset the device. To reset the IPR device to default settings 1 Remove power to the device. 2 Using a paper-clip, depress and hold the Reset to Defaults button while applying power to the device. 3 Wait until the Run indicator on the front panel starts to flash quickly, and then release the Reset to Defaults button. Note This could take up to 30 seconds especially when the network cable is disconnected. 4 Remove power to the device. 5 Wait for several seconds, and then reapply power to the device. The device is restored to the factory default settings (see Resetting to Factory Default Settings on page 121). IPR100/IPR110Plus Product Manual 25

38

39 Basic Configuration This section describes the basic configuration of the IPR device and includes the following: What is the Configuration Interface? Using the Configuration Interface on page 28 Viewing the System Status on page 37 Configuring the Basic Network Settings on page 40 Changing the Supervisor Password on page 42 Backing up and Restoring the Configuration on page 42 Radio/Handset Settings on page 45 VoIP/RTP Configuration on page 47 What is the Configuration Interface? The IPR100 and IPR110Plus products include a built-in configuration interface you can access using your web browser. The configuration interface provides passwordprotected access and should be compatible with most modern web browsers. The configuration interface consists of a series of web pages designed to help you configure and manage the operation of the IPR device. You can access all the status information, configuration settings, and diagnostic tools in one convenient user interface. The web pages use JavaScript so you should ensure that JavaScript is enabled your web browser. The configuration interface supports the following web browsers: Internet Explorer 9 11, Edge 38 Firefox 38 or later Google Chrome 14 or later Safari 5 or later It may also be compatible with other web browsers not listed above; however, Omnitronics cannot guarantee the compatibility of such browsers. IPR100/IPR110Plus Product Manual 27

40 Using the Configuration Interface All configuration and management of the IPR device is done using its built-in web server, known as the configuration interface. You must login to the configuration interface with a user name and a password before you can view or change any of the configuration settings. To login, you must be able to navigate to the IPR device on the network using your web browser. Therefore, you need to know the IPv4 address of the device. Note If the IPR device is configured with factory default settings, you can use its default IPv4 address ( or ) to access the configuration interface. If you do not know the IPv4 address of your IPR device, you might be able to use the Network Discovery feature of Windows to discover the IPR device on your network (see Discovering the IPR on the Network below). Discovering the IPR on the Network If the IPR device and your computer are connected to the same network, and UPnP (universal plug-n-play) is enabled in the IPR device, you may be able to discover it on your network. You will see all of the computers and devices that are currently part of the network in the Network folder as shown in Figure 13. Figure 13. Discovering the IPR device with Windows 7 The IPR device product should appear with a VoIP Device name (e.g. VoIP Device IPR100: Version or VoIP Device IPR110PLUS: Version ) Once you have located the IPR device, double-click on it to automatically load the log-in page in your web browser. Note To discover the IPR device on your network, it must be on the same subnet as the computer used to access the device. 28 Basic Configuration

41 User Accounts and Logging In To configure the IPR, you must first login using one of the built-in user accounts. Each account has a different level of access, as described below: Supervisor User Account provides full access and allows supervisors or system administrators to configure all the settings of the IPR device. Technician User Account provides read-only access to the System Status page and several Diagnostics pages. Limited User Account provides access to only the System Status page and the Radio Diagnostics page. The IP address of the IPR will either be the factory default IPv4 address or the IPv4 address you configured in Connecting to the Network on page 19. If you do not know the IPv4 address, you might be able to use the Network Discovery feature (see Discovering the IPR on the Network on page 28). To log in to the IPR 1 Use your web browser to navigate to the IPR login page (type the IPv4 address of the IPR in the address bar of your web browser). The login page appears in your bowser. 2 Click the Log In link. The password dialog appears (this example uses Internet Explorer 9). Note When you configure the IPR device for the first time, you must log in under the built-in supervisor account with a user name of omni. 3 To login under the Supervisor account, type the user name of omni in lowercase (the user name is the same for both the IPR100 and IPR110Plus, and then type the password. The password you type depends on which device you are configuring. IPR100/IPR110Plus Product Manual 29

42 Device Model User name Password IPR100 omni ipr100 IPR110Plus omni ipr110+ Note The user name and password are case sensitive and must be typed in lowercase characters make sure the Caps Lock key is not active on your computer keyboard! Once you have logged in, you will see the System Status page the appearance of this page depends on which device you are configuring and the account you used to login (see Viewing the System Status on page 37). It is recommended that you change the password of the Supervisor account to prevent unauthorized access (see Changing the Supervisor Password on page 42). Supervisor User Account Under the Supervisor account, you will see the System Status page similar to the one shown in Figure 14 depending on which device you are configuring. This page is the same in both Basic and Advanced modes. Figure 14. System status page for supervisor account Note When logged in under the Supervisor user account, you have unlimited access to the configuration settings, and are responsible for configuring the IPR device and setting up the user names and passwords for the other user accounts (Technician and Limited). Technician User Account Under the Technician account, only a limited set of menus and configuration pages appear, as shown in Figure 15. You can view the System Version Information, the Current Status, and the Channel Information. You can also access several of the Diagnostics pages, such as Diagnostics and Statistics. 30 Basic Configuration

43 Figure 15. IPR110Plus system status page for technician account Limited User Account Under the Limited-User account, only the System Status page is visible, as shown in Figure 16. Additionally, limited users can also access the Statistics page under Diagnostics. Figure 16. IPR110Plus system status page for the limited-user account Layout of the Configuration Interface Figure 17 shows the Configuration Interface when logged in under the Supervisor account the page shown here is the Network Configuration page (see Configuring the Basic Network Settings on page 40) that is displayed when you select the Network menu in Basic mode for the IPR110Plus (the corresponding page for the IPR100 looks similar to this one). IPR100/IPR110Plus Product Manual 31

44 At the bottom of this page is the Configuration Status area, which shows whether you have made any changes to the settings. This appears on all pages that have configuration settings you can change, and displays various status messages (see Configuration Status on page 33). Configuration page Displays the name of the configuration page Basic Settings Displays the basic settings for the configuration page Menu system Shows Basic and Advanced menus Figure 17. Using the Configuration Interface user interface Configuration status Shows the configuration status and provides buttons to save, undo, and reset the configuration. The left-hand panel of the configuration interface provides the menu system, which shows a menu item for each of the available configuration pages the items shown in the menu depend on the user account you used when you logged in to the system and which menu mode you are using (the menu modes are discussed below). When you log in, the Basic Menu mode is shown by default. The various configuration pages are accessed by clicking on the menu items located on the left-hand panel of the interface: selecting a menu item displays the corresponding configuration page on the right-hand panel of the interface. The Configuration Interface has two modes of operation: Basic Mode provides access to basic configuration settings that allow you to configure the IPR device with minimal settings to get it up and running quickly. This mode is most suitable for simple or straight-forward installations in which the basic settings are sufficient. Advanced Mode provides more advanced configuration features supported by the devices. This mode allows you to perform more advanced configuration of the devices for installations in which you need more control over the operation of the devices. The first item in the menu is Go to ADVANCED mode. Click this item to switch the configuration interface to advanced mode. In Advanced mode, additional menu items and configuration pages are available, and the first menu item changes to Go to BASIC mode. Click on this item to revert to Basic mode. 32 Basic Configuration

45 When you are done configuring the IPR device, you should always log out of the Configuration Interface by clicking Exit (see Logging Out on page 37). This will take you back to the log-in page and prevent unauthorized access to the configuration pages. You will need to enter the user name and password again to login. Configuration Status On all configuration pages that provide settings you can change, a configuration status area is displayed along the bottom edge of the page. This shows the status of the configuration settings for the current page, such as whether you have made any changes to the configuration, or the configuration has changed but you have not saved the changes you made. Figure 18 shows the Configuration Status area that is displayed when no changes to the configuration are pending. The one shown here is for the IPR110Plus, however, it is the same for the IPR100. Save button Saves changes to the configuration Restart button Restarts the device Figure 18. Configuration status area Status message area Shows configuration status messages Undo button Discards any changes Reset to Defaults button Reloads factory default The Configuration Status area shows the status of the IPR device configuration, and provides several buttons to allow you to save or undo any changes you make to the configuration settings. You can also reset the IPR device to its default factory settings, and restart the IPR device as required. The buttons in the Configuration Status area and the function they perform are described below: Save allows you to save the changes you made to the settings on the configuration page displayed in the web browser. You must always save the configuration before navigating to another configuration page otherwise the changes will be discarded. Restart performs a restart of the IPR device using configuration settings from flash memory a restart is required after you save any the changes to the configuration. Reset to Defaults reloads the configuration with default values for settings on all configuration pages (not just the page displayed in the browser), but does not save the default settings to flash memory. Undo discards any changes that you made to the settings on the configuration page displayed in the web browser, and reloads the configuration. This affects the settings on all configuration pages; not just the settings on the current page. IPR100/IPR110Plus Product Manual 33

46 The Status Message area is immediately above the buttons and displays status messages as described below. Status Configuration Unchanged Configuration has been saved. Restart required to take effect. Data is invalid: IT HAS NOT BEEN SAVED Configuration reset to defaults: NOT SAVED Configuration reset to saved values Description Indicates that the configuration settings on the page have not changed. Indicates that the configuration settings have been saved into flash memory of the IPR device, but are not currently used. A restart is required before the new settings will take effect. Indicates that one (or more) of the settings entered was invalid and the configuration has not been saved. All configuration values on a page must be valid before any values will be saved. You must identify all incorrect configuration values and correct the errors. The Configuration Status area will show additional information about the incorrect value. Indicates that the ALL configuration settings have been reset to the default values; not just the settings on this page. However, you still need to save the changes to make the changes permanent. The configuration values on the configuration page have been restored to the values saved in the flash memory. This is the result of clicking the Undo button. Note If you change the configuration setting(s) on a page, you must save the configuration before navigating to another page otherwise any changes you made will be discarded. Saving Configuration Settings When you make changes to the settings on a configuration page, or you restore the configuration from a backup file, you must save the changes to the IPR device; otherwise if you navigate to another configuration page, the changes will be discarded. To save the configuration changes, click the Save button on the page. When you save the changes, the message displayed under Configuration Status changes to Configuration has been saved. Restart required to take effect, as shown in Figure 19. This message advises you that the configuration has been permanently saved, however, you now need to restart the IPR device so that the new settings can be loaded (see Restarting the IPR Device below). 34 Basic Configuration

47 Figure 19. Saving the configuration changes Restarting the IPR Device Once you have made changes to the configuration, or restored the configuration from a backup file, and saved the configuration, you must restart the IPR device for the changes to take effect. To restart the IPR device, click the Restart button on the page. Warning! Do not remove power to the IPR device while it is restarting otherwise it may cause damage or corrupt the firmware. While the IPR device is restarting, the page will show Restart in Progress, as shown in Figure 20. After about 30 seconds, it should restart and you will be redirected to the login page. You will need to login again if you want to continue configuring the IPR device (see User Accounts and Logging In on page 29). Figure 20. Restarting after saving the configuration settings After restarting the IPR device, it is recommended that you back up the configuration for safekeeping in case you need to restore it later (see Backing up and Restoring the Configuration on page 42). If you can no longer use your web browser to communicate with the IPR device after restarting it, this is most likely due to the IP address of your computer is now on a different subnet than the IPR device. In this case, you ll need to change it to the same subnet as the IPR device before you can use your web browser. For further information on how to change the IP address of your computer, refer to Connecting to the Network on page 19. IPR100/IPR110Plus Product Manual 35

48 Note You may need to refresh your web browser after the IPR device has restarted. Resetting the Configuration to Default Settings Sometimes you may want to reset the configuration of the IPR device to its factory default settings. This is especially useful when you want to change only a handful of settings as it provides a good starting point for configuring the device. In most cases, the default configuration will do for basic installations with only some minor changes. The default configuration is also useful when you need to troubleshoot a particular problem or the device is not operating as you expected. In this case, you can start with the default settings and carefully make changes as required to determine the cause of any problem. Figure 21 shows the three steps involved in resetting the IPR device to factory default settings. First, click Reset to Defaults. This resets the in-memory configuration to defaults but does not make the changes permanent. Second, click Save to make the changes permanent. Finally, click Restart to restart the device. Figure 21. Resetting the configuration to default settings Note When the IPR is reset to its factory-default settings, you may not be able to communicate with it. This is because it has reverted to its default IPv4 address set at the factory. In this case, you may need to temporarily change the network settings of your computer in order to use your web browser to communicate with the device (see Connecting to the Network on page 19). 36 Basic Configuration

49 Logging Out Once you have completed configuring the IPR device, it is recommended that you log out by clicking the Exit. If you want to continue configuring the IPR device, you will need to type your user name and password to log back in again (see User Accounts and Logging In on page 29). Viewing the System Status Select System Status to display the System Status page. Figure 22 shows the page for the IPR110Plus when logged in under the supervisor account (the page for the IPR100 is similar). Figure 22. System Status page This page shows the version information for both the hardware and the firmware together with the current status and SIP status. All the values on this page are readonly so you cannot make any changes. If you logged in under the technician account or the limited-user account, you will not see as many items displayed in the menu. Current Status The Current Status section displays current status information about the operation of the IPR device and includes the following: IP Address shows the local IPv4 Address of the IPR device. IPR100/IPR110Plus Product Manual 37

50 Ethernet MAC Address shows the unique MAC address (Media Access Control) of the IPR device. System up time shows the elapsed time since the IPR device was last restarted (displayed as days, hours:minutes:seconds). Free memory shows the current number of bytes of memory available in kilobytes (KB) for the IPR device to use. This will change depending on the operation of the IPR device. Free Buffer Count is the total number of buffers available. A buffer is a static block of memory allocated from a dedicated memory pool, which is used by the system to prevent memory fragmentation over a long time and improve performance. The number of buffers available will change over time according to the resource requirements of the IPR. This has no effect on the Free Memory. Hardware restart status shows what caused the IPR device to restart, and can be one of the following: SOFTWARE Reset WATCHDOG Reset Power On Reset Loss of Clock Lock IPR restarted by the Restart command on the configuration interface. IPR restarted internally due to a system process taking too much CPU time. IPR lost external power or powered up. IPR reset due to a possible hardware fault causing the application to loose clock sync. Connected IP devices shows the number of IP devices communicating with the IPR device. This number includes connected IP devices that are not currently transmitting audio. Radio Mode: Push-to-Talk Output or Console Mode: Busy Output shows either the current state of the E&M push-to-talk (PTT) output for radio mode or the busy output for console mode this depends on the device type (Radio or Handset/Console) that you select on the Radio/Handset page (see Radio/Handset Settings on page 45). Radio Mode: Mute Input or Console Mode: Push-to-Talk Input shows the either the current state of the E&M mute input for radio mode or the push-totalk input for console mode this depends on the device type (Radio or Handset/Console) that you select on the Radio/Handset page (see Radio/Handset Settings on page 45). Last Received SELCALL shows the selcall sequence that was last received by this device (only when the device is configured for selcall). Last Transmitted SELCALL shows the selcall sequence that was last transmitted by this device (only when the device is configured for selcall). CTCSS Receive Status shows the CTCSS tone last received by this device (only when the device is configured for CTCSS, see CTCSS Settings on page 90). CTCSS Transmit Status shows the CTCSS tone last transmitted by this device this will appear only when the device is configured for CTCSS (see CTCSS Settings on page 90). 38 Basic Configuration

51 SIP Status The SIP Status section appears only if you enable SIP operation. It shows the current status of the SIP connections and includes the following: Current active connections shows the number of SIP connections currently active. Status shows the status of the SIP connection (for further information about SIP, refer to the application example IPR110Plus Radio to SIP/PSTN Gateway on page 158). Registration Status shows the status of registration with a SIP server. For further information about SIP, refer to Advanced SIP Configuration on page 65. Dynamic DNS Status The Dynamic DNS Status section appears only if you enable the dynamic DNS under the advanced network configuration and includes the following: Consecutive No Change Updates shows the Dynamic DNS status with the current public IP Address, previous public IP Address (if available), the number of consecutive No Change updates, and the last dynamic DNS update result (if available). For further information about Dynamic DNS, refer to Dynamic DNS on page 52. IPR100/IPR110Plus Product Manual 39

52 Configuring the Basic Network Settings Select Network to configure basic network parameters such as IP address, network mask, and the gateway address of the IPR device. Figure 23 shows the basic network configuration for the IPR110Plus (the IPR100 is similar). Figure 23. Basic network configuration page Basic Network Settings This section allows you to configure the basic network settings of the IPR device and include the following: Location Name is the name assigned to the installation site. It is also the value that will appear in the Windows Network Neighborhood and can also be used to access the device by name on a local network. This setting consists of alphanumeric characters up to a maximum length of 100, but must not contain any spaces or punctuation characters. The default name is the type of device followed by its serial number. For example: IPR100 with a serial number of 52A1212 would have the default name of IPR100-52A1212, and an IPR110Plus with a serial number of 52A0526 would have a default name of IPR110PLUS- 52A0526. Automatically obtain IP Address (using DHCP) option is used to allow the IPR device to obtain an IP address automatically from a DHCP server. When DHCP is enabled, the static IP address, network gateway address, and the domain name server settings will be ignored as appropriate values will be provided by the DHCP server. When this option is selected, the other network settings will be disabled. The default setting is disabled. Static IP Address is the IPv4 address of the IPR device, which consists of 32 bits expressed in a form consisting of four decimal octets separated by periods (dots), called dot-decimal notation. The default is or (the default configuration is to use a static IP address). 40 Basic Configuration

53 Note If you want to use the option to Automatically obtain an IP Address (using DHCP), the IPR100/110Plus will attempt to locate a DHCP server on start up. If it cannot find a server, it will either use the static IP address or automatically assign itself an address in the range x.x. In this case, the IPR100/110Plus will take a little longer to start up before it times out waiting for a DHCP server. Netmask is the subnet mask that determines what part of the IPv4 address is used to identify the subnet that the IPR device is on. A valid IPv4 subnet mask consists of 32 bits: a sequence of ones (1) followed by a block of zeros (0), expressed in a form consisting of four decimal octets separated by periods (dots), called dot-decimal notation. The sequence of ones (1) designates that part as the network prefix (subnet) and the block of zeros (0) designates that part as the host identifier. The default value is Gateway Address is the IP address of the default network gateway. This would usually be the IP address of the router or network device that provides access to the WAN or internet. A valid IPv4 gateway address consists of 32 bits, expressed in a form consisting of four decimal octets separated by periods (dots), called dot-decimal notation. The default value is Using a DHCP Server Select Automatically obtain IP Address (using DHCP) to enable Dynamic Host Configuration Protocol (DHCP), which allows the IPR device to obtain an IP address automatically from a DHCP server. When DHCP is enabled (this is the default setting), the static IP address, network mask (netmask), and network gateway address settings will be ignored as appropriate values will be provided by the DHCP server. If you want to assign a static IP address, deselect this option and type the static IP address, subnet mask, and gateway address you want to assign. It is recommended that you allocate an address in the range of to or to as these are especially reserved for private addresses. When using a DHCP server to automatically allocate an IP address to the IPR device, another IP device will not be able to communicate with the IPR device unless multicast addressing or local mdns is used as it will not know the IP address allocated by the DHCP server. Multicast Addressing is a protocol for efficiently sending data to multiple IPR devices at the same time over TCP/IP networks (see Multicast Addressing on page 167 for further details). Local mdns name allows the IPR device to connect to another IPR device by using a local name address instead of an IP address. Local addressing takes the form of <name>.local, where <name> is the Location Name configured on the Network settings page (e.g., IPR device-52a1680.local). IPR100/IPR110Plus Product Manual 41

54 Changing the Supervisor Password Select Change Password in Basic mode to display the Change Password page, as shown Figure 24. This page allows you to change the password used to login under the Supervisor account. Figure 24. Changing the password of the Configuration Interface To change the password, type the new password in the Enter supervisor password textbox, then retype it in the Confirm password textbox (the password can contain up to 10 characters in length and may include any character that can be typed using an English language keyboard), and then click Save (see Saving Configuration Settings on page 34). You must restart the IPR device by clicking Restart for the new password to take effect (see Restarting the IPR Device on page 35). Note The name of the Supervisor account is factory set to omni and cannot be changed. Backing up and Restoring the Configuration Select Backup/Restore to display the page shown in Figure 25. This allows you to back up or restore the configuration to/from a file on your computer. Figure 25. Backing up and restoring the configuration 42 Basic Configuration

55 Note It is recommended that you back up the configuration for safekeeping in case you need to restore it later or to perform troubleshooting. Backing up the Configuration to a File The backup process involves saving the existing configuration to a file on the hard drive of the computer you are using to access the IPR device. You will be prompted to select a location on your computer to store the file. The default file name is ipr100_cfg.bin (IPR100) or ipr110plus_cfg.bin (IPR110Plus), but you can rename the file. The following procedure assumes you are using Firefox as your web browser; however, other browsers will show similar screens. To back up the configuration 1 Click Backup to open the browser s dialog. 2 Select the Save File option (if not already selected). 3 Click OK to save the configuration. You will be prompted for a folder and file name in the Enter name of file to save to dialog. 4 (Optional) If you want to use a different folder or file name than the default, type the file name in the File name box. 5 Click Save. This saves the configuration to the specified file. The file will appear in the Downloads dialog similar to the one shown below. IPR100/IPR110Plus Product Manual 43

56 Restoring the Configuration from a File You can restore the configuration in the IPR device to a previously saved configuration (backup) by restoring it from a backup file on your computer. The following procedure describes how to restore the configuration using Firefox; however, other browsers will be similar. To restore the configuration 1 Click Browse to open the browser s File Upload dialog. 2 In the File Upload dialog, locate the backup file on your computer, and then click Open. The full path and filename of the file you selected is shown in the Select Restore Configuration file box. 3 Click Restore. This restores the configuration from the file on your hard disk. The Configuration Status changes to Configuration restore complete! (Configuration has not been saved). 4 Click Save. This saves the restored configuration to the IPR device. The Configuration Status changes to "Configuration has been saved. Restart required to take effect". 44 Basic Configuration

57 5 Click Restart. The Restart in Progress page appears whilst the IPR device is restarting, after which time, the login page will be displayed in your web browser. For further information about restarting the IPR device, refer to the section Restarting the IPR Device on page 35. Radio/Handset Settings Select Radio to configure settings for the radio peripheral devices you want to use, as shown in Figure 26. Figure 26. Basic Radio/Handset configuration page IPR100/IPR110Plus Product Manual 45

58 Basic Settings The basic settings that you can configure on this page include the following: Device type is the type of device connected to the IPR device, and can either be an Omnitronics Handset (or Console) or a radio. This setting selects the mode of operation and affects how the control interface operates. The following modes are provided: Radio Handset/Console Radio and Handset/Console: Audio linked Radio and Handset/Console: Remote Audio only The IPR device energizes the radio PTT relay and monitors the radio busy status on the E&M connector on the rear panel. This is the default mode. The IPR device energizes the handset busy output and monitors the handset PTT input. In this mode, all three sources are linked together so that each source drives the other two. This allows the local handset to be used with the local radio as well as the remote equipment. The audio into one port sends audio to both of the other ports. The PTT for the radio port and the busy output for the handset port are driven simultaneously. Both the radio busy signal and the handset PTT signal are read and used in processing the audio. On the handset port, the PTT input from the handset is used to drive the signaling to the network and the PTT relay for the radio port. On the radio port, the busy input is used to drive both the signaling to the network and the busy output to the handset. In this mode, both the radio and handset ports are connected to the network port but not to each other. This means that the audio from the network goes to both ports simultaneously but audio from the radio port and the handset port is summed and only goes to the network port. On the handset port, the PTT input from the handset is used only to drive the signaling to the network, and the handset busy is only driven by the network signaling. On the radio port, the busy input is used only to drive the signaling to the network, and the PTT is only controlled from the network signaling. Note The audio circuitry is active regardless of which mode you select: the received network audio is output on both the radio and handset/console ports. If the firmware detects revision 2 hardware, the functions for Radio and Handset/Console: Audio Linked and Radio and Handset/Console: Remote Audio only are not available; and the Radio/Handset configuration page will provide a check box for the compressor this check box does not appear in rev 3 series hardware as there is no compressor in the hardware. 46 Basic Configuration

59 Volume (output level) controls the level adjustment for audio output from the IPR device. The allowed values are: -10 to +10dB. The default setting is 0dB. This controls the audio level from the VoIP link that is output from the IPR device and the input to the radio or handset/console. Setting the value to 0dB applies no gain, and increasing this value makes the output from the IPR louder, while applying a negative value decreases the level below the VoIP level. Allowed Values: -10 to +10dB. Default: Transmit Gain 0dB. Expected audio input level is the level adjustment of the input to IPR device. Set this to the level of the expected input signal. This value should be set to the nominal level output by the radio or handset/console connected to the IPR device. The IPR device will take the expected audio input level and transmit it across the VoIP network at -10dBm. With the expected audio input level set to - 10dBm, no gain is applied to the signal; however, if the level is set to 0dBm, an attenuation of 10dB is applied. Similarly, if the level is set to -20dBm, a gain of 10dB is applied. If the input level is too low, you should set the expected audio input level to a lower value. For example; if it is set to -10dBm, but the input level is actually -20dBm, the output will be too low. The range of allowed values depends on the type of device connected and the hardware link settings for the audio compressor circuitry. For a connected radio, the range is -20 dbm to +10 dbm. For a handset or console this value is not configurable and will be set to - 10dBm. The default is -10dBm. VoIP/RTP Configuration Select VoIP/RTP in Basic mode to configure the basic settings for VoIP and RTP, as shown in Figure 27. On this page, you configure settings such as the IP address of the remote IPR device and the port numbers used for sending and receiving VoIP data. Figure 27. Basic VoIP / RTP configuration settings IPR100/IPR110Plus Product Manual 47

60 Basic Settings The basic settings that you can configure on this page include the following: Remote IP Address is the IPv4 address of the remote IPR device, which consists of a valid IPv4 address (in dot-decimal notation), a fully-qualified domain name, or a multicast address (see Multicast Addressing on page 167). The default value is the local address of a matching IPR device (see Types of Remote Addressing on page 166). RTP receive port number is the Internet port number that is used for receiving audio and control messages. The allowed value is an even number from 1024 and The default setting is 5004, 5006, 5008 or 5010 depending on the VoIP Channel (see Internet Port Numbers on page 167). RTP transmit port number is the Internet port number that is used for transmitting audio and control messages. The allowed value is an even number from 1026 and The default setting is 5004, 5006, 5008 or 5010 depending on the VoIP Channel (see Internet Port Numbers on page 167). IPR devices are factory configured to communicate in matching pairs based on the serial number of each device, as described below: Even-numbered serial number: If the serial number of the IPR device is even, its default IP address is and its default remote VoIP address is Odd-numbered serial number: If the serial number of the IPR device is odd, its default IP address is and its default remote VoIP address is Basic Configuration

61 Advanced Configuration This section discusses the advanced settings of the IPR100 and IPR110Plus products, and includes the following: Switching to Advanced Mode Advanced Network Settings on page 50 SNMP Settings on page 54 Advanced Radio/Handset Settings on page 56 Advanced VoIP/RTP Settings on page 60 Advanced SIP Configuration on page 65 SELCALL/DTMF Settings on page 87 CTCSS Settings on page 90 Serial Data Settings page 92 Changing the Passwords of User Accounts on page 102 Switching to Advanced Mode Advanced mode provides many additional settings beyond those available in the Basic mode. To switch to Advanced mode, select Go to ADVANCED mode, as shown in Figure 28 (pages are the same for both IPR100 and IPR110Plus). This reloads the current page in your web browser to show the advanced configuration settings. Figure 28. Switching to advanced configuration mode of the IPR110Plus To switch back to Basic mode, select Go to BASIC mode. For information about the basic settings, refer to 0, Basic Configuration. IPR100/IPR110Plus Product Manual 49

62 In Advanced mode, the following additional items appear on the menu: SNMP, SIP, SELCALL/DTMF, CTCSS, Serial Data, and Connections. Many of the configuration pages provide advanced settings. For instance, the Network page displays additional settings under Advanced Settings and Dynamic DNS headings. Some pages, however, do not have any advanced settings so you will see the same settings in Advanced mode that you see in Basic mode. Note Both menu modes only affect what settings appear on the web pages: Basic mode does not disable any settings in Advanced mode. Advanced Network Settings Select Network (IPR100/IPR110Plus) in Advanced mode to display the Network Configuration page, as shown in Figure 29. Use this page to configure the advanced network settings. Figure 29. Advanced network configuration page In Advanced mode, the Network Configuration page includes two additional sections: Advanced Settings, and Dynamic DNS. For information about the basic network settings, refer to Configuring the Basic Network Settings on page 40. Important If you make any changes to the settings on the Network page, you must save the configuration, and then restart the device for the network changes to take effect. 50 Advanced Configuration

63 Advanced Settings The Advanced Settings configure the Universal Plug and Play (UPnP) technology, which makes it easy for devices to discover each other on the network, and various other advanced settings including the following: Enable UPNP option selects Universal Plug and Play (UPnP) technology, which is network technology that allows the IPR device to be located on the network. When enabled (default), the IPR will appear in the Network folder on a Windows computer (see Discovering the IPR on the Network on page 28). Enable Telnet option allows remote access using Telnet. Default is disabled. Note You should disable the Telnet option when you do not require remote access or when the IPR is connected to a public IP network such as the Internet. Domain Name System (DNS) Server 1 is the primary Domain Name Server (DNS). The DNS is how an Internet address, such as is resolved to a numeric (dot-decimal notation) address, like Consult with your ISP or network administrator to determine the correct address. In some cases, the DNS address is the same as the Gateway address. A valid IPv4 address consists of 32 bits, expressed in a form consisting of four decimal octets separated by periods (dot-decimal notation). A value of indicates that no DNS is used. The default setting is (not used). Domain Name System (DNS) Server 2 is the backup DNS that is used in the event the primary DNS is not available. A valid DNS address is the same as described for the setting above. A value of indicates that no DNS is used. The default setting is (not used). Enable Simple Network Management Protocol - SNMP selects the Simple Network Management Protocol (SNMP) feature. SNMP provides a means to extract status information from the IPR100 through a network management system. The IPR100 provides several standard network statistics as well as the site monitoring and control I/O of the IPR100. If you do not intend to use SNMP, this setting should not be selected. This feature is not available in this version of the IPR100. Quality of Service: Differentiated Service Class allows the IPR device to mark its VoIP packets as higher priority to ensure they receive preferential treatment when being routed. Consult with your ISP or network manager for more information about the appropriate QOS settings. Allowed values: Default, Expedited Forwarding, Class 1 7, Assured Forwarding 1-1 to Assured Forwarding 4-3. Default is the default setting. Syslog host address is the address used for debugging and diagnosing faults with the IPR100, which can report debug and error information via a network protocol called SYSLOG. This setting is normally set to the default (not used). A valid IPv4 address consists of 32 bits, expressed in a form consisting of four decimal octets separated by periods (dot-decimal notation). A value of indicates that no SYSLOG messages are used. The default is (not used). IPR100/IPR110Plus Product Manual 51

64 Dynamic DNS The Dynamic DNS area allows you to configure the DNS settings of the IPR100 and includes the following: Enable Dynamic DNS allows the device to track changes in its public IP address and to update the configured Dynamic DNS host accordingly. Additionally, it performs periodic Domain Name resolution of any configured remote domains and performs required adjustments when a remote end experiences a change in public IP address. Enabling this feature will decrease VoIP down-time when devices sit behind routers of which the IP address can change dynamically. The default is disabled. Important When enabling Dynamic DNS, ensure that the Domain Name System (DNS) Server 1 is configured to an actual DNS server. To enable DNS resolution only, select this setting and leave all the following settings blank. Public IP Service 1 is a URL to a web service that returns the current public IP address of the requester. It must start with and it is best to verify this in a browser before transferring the URL to this setting. Service 1 acts as the primary IP lookup. Leaving this field blank disables determining the IPR devices public IP address. Default: Not Configured. Public IP Service 2 is similar to Public IP Service 1 except that this will act as the secondary web IP lookup if configured. It will only be used if Service 1 fails. The default is Not Configured. Device Domain Name is the fully qualified domain name of the device. It is this name that is used in all dynamic DNS updates when the device detects a change in the current public IP address. The default is Not Configured. Dynamic DNS Host Domain Name is the fully qualified domain name of the server hosting the Dynamic Domain Name service. The server must be the authority with which the Device Domain Name is registered. The default is Not Configured. Dynamic DNS Host Port is the HTTP port (usually 80) of the server hosting the Dynamic Domain Name Service. If port 80 is blocked by a local firewall and if the Dynamic Domain Name Host allows updates via another port, set this accordingly. The default port is 80. Dynamic DNS Host Authentication User Name is the user name required by the dynamic DNS Host for authentication in all updates. The default is Not Configured. Dynamic DNS Host Authentication Password is the password required by the dynamic DNS Host for authentication in all updates. The default is Not Configured. Use the Public IP address for SIP determines whether the public IP address of the device will be used in all SIP conversations. If this setting is not selected, the private IP address will be used. This setting is not selected by default. 52 Advanced Configuration

65 Using a DHCP Server Select Automatically obtain IP Address (using DHCP) to enable Dynamic Host Configuration Protocol (DHCP), which allows the IPR device to obtain an IP address automatically from a DHCP server. When DHCP is enabled, the static IP address, network gateway address and domain name server settings will be ignored as appropriate values will be provided by the DHCP server; this is the default setting. If you want to assign a static IP address to the IPR100, it is recommended that you allocate an address in the range of to or to as these are especially reserved for private addresses. Note If you want to use the option to Automatically obtain an IP Address (using DHCP), the IPR device will attempt to locate a DHCP server on start up. If it cannot find a server, it will either use the static IP address or automatically assign itself an address in the range x.x. In this case, the IPR will take an additional seconds to startup whilst waiting to timeout for a DHCP server to respond When using a DHCP server to automatically allocate an IP address to the IPR100, the other IP device will not be able to communicate with the IPR100 unless you use multi-casting or local mdns as it will not know the IP address allocated by the DHCP server. Multicast Addressing is a protocol for efficiently sending data to multiple IPR100 devices at the same time over TCP/IP networks (see Types of Remote Addressing on page 166 for further details). Local mdns name allows you to connect to an IPR100 device by using a local name address instead of an IP address. Local addressing takes the form of name.local, where name is the Location Name configured on the Network settings page. IPR100/IPR110Plus Product Manual 53

66 SNMP Settings Select SNMP Configuration (IPR100/IPR110Plus) in Advanced mode to display the SNMP configuration page, as shown in Figure 30. Use this page to configure the SNMP (Simple Network Management Protocol) settings. Figure 30. SNMP configuration page The SNMP configuration of the IPR100 includes the following parameters: Enable SNMP selects the Simple Network Management Protocol (SNMP) feature. SNMP provides a means to extract status information from the IPR100 through a network management system. The IPR100 provides several standard network statistics as well as the site monitoring and control I/O of the IPR100. If SNMP is not being used, this setting should not be selected. For more information about SNMP, refer to 0, Simple Network Management Protocol on page 178. Read community is the SNMP authentication password needed to read (SNMP GET) values from the IPR100. The default community is "public". If left blank, the IPR100 will set this value to "public" when you save the configuration. It is important to note that in order to write (SNMP SET) values to the IPR100 (the digital outputs are the only values allowed), the community "omni" is required. The SET community cannot be changed. Trap destination 1 and Trap destination 2 specify the IP address to which the IPR100 will send SNMP traps. This is also known as an SNMP trap sink address. Generally, it is the IP address of a machine that hosts network management software (NMS). The SNMP Trap destination can only be a valid static IP address. By default, the address is which disables SNMP traps. 54 Advanced Configuration

67 Enable VoIP statistic traps enables the VoIP SNMP Receive statistic reports section of the page, including the SNMP statistics interval parameter. Selecting this checkbox will enable the IPR100 to send a periodic SNMP trap (defined in the SNMP statistics interval) if either: a) the number of defined RTP Sequence errors is attained; or b) the number of defined RTP Packets too late is attained. Note The counters for each of these conditions will reset every time the SNMP statistics interval has been reached. SNMP statistics interval specifies in seconds when the IPR100 will send an SNMP trap if either: a) the number of defined RTP Sequence errors is attained or; b) the number of defined RTP Packets too late is attained. Note The counters for each of these conditions will reset every time the SNMP statistics interval has been reached. The default value is 900 seconds (15 minutes). VoIP receive sequence errors report threshold and VoIP receive packets too late report threshold defines how many RTP sequence errors or how many RTP packets that arrive too late are permitted within the SNMP statistics interval. Generally, RTP sequence errors and RTP packets that arrive too late may occur during bad network conditions including slow networks, networks with high packet loss, networks with high packet jitter, or networks with many routers/switches between devices. The default value for these fields is 0 (disabled). IPR100/IPR110Plus Product Manual 55

68 Advanced Radio/Handset Settings Select Radio/Handset (IPR100/IPR110Plus) in Advanced mode to display the Radio/Handset configuration page, as shown in Figure 31. Use this page to configure the advanced (and basic) settings for the Radio and Handset ports. For information about the basic settings, refer to Radio/Handset Settings on page 45. Figure 31. Advanced Radio/Handset configuration page for IPR100 Advanced Settings The advanced settings you can configure on this page include the following: Audio input compressor enabled enables the audio compressor option on the input audio and will set the audio gain to the correct range for the compressor. This option should only be selected if the hardware link that enables compression is installed (LK9 in position 2-3). The audio compressor circuitry on the IPR100 dynamically changes the volume of the level of the input signal. A popup message similar to one shown below will be displayed to confirm this setting. Default is disabled. 56 Advanced Configuration

69 Note With hardware revision 3.00 and later, LK9 and the Audio Compressor are no longer onboard. For versions prior to revision 3.00, ensure that the value set here matches the hardware link settings for the analog compressor circuitry. If the link settings do not match, the gain will be incorrect. See Table 1 in Differences between Hardware Revisions on page 11. PTT/ Busy Hold/Hang Time (milliseconds) is the length of time that the local radio PTT or Handset Busy output will remain on after a remote device stops requesting it. This ensures that the local radio will not stop transmitting before all audio has been sent. Allowed values: milliseconds. Default: 100 milliseconds Voice Activity Detection option detects when incoming audio is present, and can be used to save bandwidth by only sending data over the network when voice activity is detected. It can also be used to generate a signal to drive the PTT relay at the remote end (see the Remote PTT/Busy Control Mode option below). Default: enabled. VAD hold/hang time is how long (in milliseconds) the IPR100 continues to transmit data or hold PTT on after it detects no voice activity. This is primarily used to ensure that the PTT remains active to keep the remote radio transmitting continuously. Allowed values: milliseconds. Default: 100 milliseconds. Local PTT keying mode is the method by which the local PTT signal is controlled. The remote tone is based on the state of the remote IPR device's CTCSS detection. The available modes are listed below: Remote Busy/PTT Remote Busy/PTT + tone Fast Key Mode Remote Busy/PTT + tone Normal Key Mode The local PTT signal is asserted when a valid remote tone is detected. The state of the remote PTT is ignored. The local PTT signal is asserted as soon as the remote PTT signal is detected. However, if a configured remote tone is not received before the lockout time, the local PTT will be dropped. Use this mode to minimise radio key-up time. The local PTT signal is asserted when both the remote PTT signal is detected and a valid remote tone is detected. If the tone is not detected before the lockout time, then the local PTT signal will not be asserted even if a valid tone is detected. IPR100/IPR110Plus Product Manual 57

70 Tone signalling (remote Busy/PTT ignored) Only the state of the Busy information from the network is used to drive the local PTT signal. When the remote Radio is active, the local PTT will be active regardless of the state of the tone detection. Remote PTT/Busy Control Mode determines how the PTT relay of the remote IPR is activated The allowed methods are listed below: Default: Local-Busy/PTT. None Local-Busy/PTT Local-VAD Don t drive the remote PTT. Drive the remote PTT from the local radio busy or local handset PTT input (the default option). Drive the remote PTT from the voice activity detection. The remote radio will be active while voice is detected at this device Transmit without local BUSY/PTT signal option allows the IPR100 to send audio as data when no control signal is present. This is designed for use with radios that do not provide a busy signal. This mode is usually used with VAD. Default: disabled. Disable PTT/Busy Timeout option disables the timeout setting described below. PTT/Busy Locked on Timeout is the duration after which the IPR100 turns off a PTT (radio) or busy (console/handset) output. This prevents a radio from being locked up in transmit mode. Default: 180 seconds. Busy Validation The busy validation settings that you can configure include the following: Enable BUSY Validation allows the IPR100 to validate the busy input (debounce) to ensure it is present for the specified time. The default setting is busy validation disabled. BUSY Validation Time is the duration (in milliseconds) for busy validation: the state of the busy signal will be ignored for this period, and no busy state or audio will be sent to the network. The allowed values are 0 to 1000 milliseconds. The default setting is 20 milliseconds. Enable BUSY Audio Delay option is used to impose an audio delay (of the same duration as the BUSY Validation Time) on the play out of received audio. This will ensure that the received audio is in sync with the validated busy output, as shown in Figure Advanced Configuration

71 Figure 32. Audio delay timing diagram Trunk Radio Audio Delay Mode You can configure the IPR100 to provide delayed voice audio with respect to PTT. This is a key factor in linking conventional radios with trunk radios. It allows the call setup to take place without losing the first few syllables of speech. The audio delay settings for trunk radios include the following: Enable Trunk Radio Audio Delay option enables the audio to be delayed prior to transmitting. Default: disabled. Trunk Audio Delay Time is the delay (in milliseconds) imposed on the audio before it is transmitted to the device. Allowed Values: ms. Default: 0. Tail Sound The Tail Sound settings provide the option for the IPR to transmit a short tone burst (tail sound) at the end of each incoming busy from a remote radio. This provides mobile and portable users with a tail tone to confirm the user is within in range of a digital repeater and can access the repeater network. Figure 33 is a state diagram illustrating the transmission of the tail sound. Waiting for Busy signal from radio Busy Hold-Off Time elapsed IDLE Busy signal detected Drop PTT (wait for Busy Hold- Off Time) HOLD OFF BUSY Wait for Busy signal to drop Tail Sound sent Busy signal dropped Send Tail Sound to radio SEND PTT Sound Lead-In Time elapsed Figure 33. State diagram for sending the tail sound Assert PTT (wait for Sound Lead-In Time) IPR100/IPR110Plus Product Manual 59

72 In some situations involving a repeater network, the tail sound does not go to air when the IPR plays the sound. This is due to inherent key-up delays (delayed rise time) in the repeater(s). To mitigate this problem, a programmable delay (sound leadin time) is provided to enable the tail tone to be held back until the repeater system fully keys up. Enable Tail Sound option plays an audible sound file called the tail sound to the remote radio at the end of each radio transmission. Select this option to transmit the selected Tail Sound (confirmation tone burst). Sound Lead-in Time is the time in milliseconds (50 to 5000) to wait before playing the tail sound after PTT is on. Default is 500ms. Busy Hold-off Time is the time in milliseconds (50 to 5000) to hold off incoming busy after tail sound was played. Default is 500ms. Tail Sound selects which sound to play for the Tail Sound from a selection of sound files (.wav format). The available sounds are: tail.wav, tail2.wav, and incoming.wav. Advanced VoIP/RTP Settings Select the VoIP/RTP (IPR100/IPR110Plus) in Advanced mode to display the VoIP configuration page, as shown in Figure 34. This page allows you to configure the advanced (and basic) settings for VoIP and RTP. For information about the basic settings, refer to VoIP/RTP Configuration on page 47. Figure 34. VoIP/RTP advanced configuration 60 Advanced Configuration

73 Advanced Settings The Advanced Settings on this page include the following: Transmit Codec is the encoding scheme used to encode the audio data for transmission to the remote device. This setting only affects the audio sent. This IPR device will determine the type of codec used by the remote device and decode the audio even if a different codec is used. The following codecs are supported: G.711 PCMU (default), G.711 PCMA, G ADPCM, or GSM (see Supported Codecs on page 63 for a description of each codec). Note Different versions of IPR devices and VoIP phones can support different codec types. The IPR100 product does not support G.729 or G codecs. IP Time To Live (TTL) determines the number of network routers that will pass on the data packets from this unit. This value limits how far the message will be sent. Typically as a router forwards a data packet, it will decrease the TTL information in the data packet, and once the TTL reaches zero, the message will no longer get forwarded. The allowable values are 1 (default) to 255. When using multicasting, the TTL value indicates the scope or range in which a packet may be forwarded. When configuring an IPR device to use multicasting, it is important to consult with the IT department that manages the network infrastructure to make sure an appropriate value is used. The following predefined values are used by convention: TTL = 0 TTL = 1 TTL = 32 TTL = 64 TTL = 128 TTL = 225 Restricted to the same host Restricted to the same subnet Restricted to the same site Restricted to the same region Restricted to the same continent Unrestricted Minimum jitter buffer size sets the delay in milliseconds imposed on the received audio. If the IPR100 is used on a network in which variations in packet delay occur, increasing this value to match the maximum likely delay should improve the quality of the audio. The larger this value is set, the more delay is imposed on the received audio. The allowed values are 20 to 1000 milliseconds. The default value is 20 milliseconds. Maximum jitter buffer size sets the maximum acceptable audio delay (in milliseconds), for received audio. The IPR100 will automatically adjust the delay (depending on network conditions) to the smallest possible value, thus reducing the received audio delay to the minimum that the network can support. The allowed values are: 100 to 2000 milliseconds. The default value is 500 milliseconds. IPR100/IPR110Plus Product Manual 61

74 Note The Maximum Jitter Buffer Size must be greater than or equal to the Minimum Jitter Buffer Size. RTCP Interval/Timeout specifies the period (in seconds) when the RTCP packets are sent. The VoIP link consists of voice data and control information. The control information is provided by the Real Time Control Protocol (RTCP) where packets are periodically sent to provide a heart-beat that maintains the VoIP connection. This parameter must be set identically on both devices that have a VoIP link is established. If multicasting is used, all devices in the multicast group must have this parameter set identically. Reducing the value of this parameter has the effect of reducing the time in detecting a link disconnection with the associated disadvantage of increasing the required Ethernet bandwidth. Alternatively, increasing the value of this parameter reduces the required Ethernet bandwidth and increases the time to detect a link disconnection. An increased RTCP interval may be useful in data bandwidth critical application such as a VoIP link through the 3G mobile phone network. The allowed values are 1 to 120 seconds. The default value is 5 seconds. BUSY/PTT periodic transmit disable option disables the periodic transmission of Busy and PTT status information. In normal operation, the IPR device will send the state of the Busy input and Push-To-Talk output to all connected devices to ensure that the current state is always correct. However, in some scenarios, such as expensive satellite IP links, it may be desirable to disable this feature. In this case, Busy and PTT changes are only sent when the state of the input or output actually changes. BUSY/PTT periodic transmit time determines the period (in seconds) at which the IPR device sends the state of its Busy input and Push-To-Talk output to connected VoIP devices. Enable encryption allows the IPR to encrypt the network data so that a third party is unable to intercept and listen in to conversations. Using an encryption algorithm allows the IPR to encrypt all voice and control data. The IPR100 provides two algorithms: DES and AES (Australia model only). The DES algorithm is an older and less-secure algorithm with a secret key that is 56-bits long. The AES algorithm is a newer algorithm that has a key length of 128 bits, making it more secure. Due to export restrictions, only devices with DES encryption can be exported from Australia. As a result, international IPR devices support only the DES encryption standard. The allowed values are listed below: Encryption Disabled Encryption Enabled AES 128 Encryption Enabled DES Do not use data encryption (Default) Use AES 128-bit encryption Use DES 56-bit encryption Encryption key is the string that is used to encrypt the data. This ensures that no third party can decrypt the VoIP data. If this field is blank, the default encryption is used; this ensures backward compatibility with earlier versions of IPR100 firmware (version 1.24 and earlier). The encryption key is case-sensitive. 62 Advanced Configuration

75 Important If encryption is enabled, then all communicating IPR devices must have encryption enabled and must be configured with the exact same encryption type and encryption key; otherwise the IPR devices will not be able to communicate and the external VoIP indicator will not illuminate. Enable half-duplex mode option enables or disables the half-duplex mode of operation. In this mode, while the device is generating an active PTT output (sending audio to the radio), the Busy input signal and any received audio from the radio will be ignored. Similarly, when the Busy input signal is active (receiving audio from the radio), PTT will be inhibited. Use this mode when you want to force the VoIP link to be half-duplex. Supported Codecs The codecs supported by the IPR device are listed below. Codec G.711 PCMU 8000Hz μ-law (often u-law, ulaw, or mu-law) G.711 PCMA 8000Hz a-law G GSM Description ITU G.711 Pulse Coded Modulation μ-law. Bandwidth: 64 kbits per second. Use this Codec for tone signaling. Voice Quality: Best. Used in North America and Japan. ITU G.711 Pulse Coded Modulation A-law. Bandwidth: 64kbps. Use this Codec for tone signaling. Voice Quality: Best. Used in Europe and rest of the world. Adaptive PCM: This is ITU G ADPCM 8000Hz: Adaptive PCM. Bandwidth: 32kbps. Voice Quality: Good This is GSM Codec. Bandwidth: 13kbps. Voice Quality: Good for Voice but distorts tones and DTMF signals. VoIP Conference Mode Under the Conference Mode settings shown in Figure 35, you can configure the IPR100 to connect with multiple IP devices in conference mode. This allows several radios or consoles to be connected together in a conference or party-line mode. For further information about the applications of conference mode, refer to Connecting Multiple IPR Devices Using Conference Mode on page 143. Figure 35. VoIP conference mode settings IPR100/IPR110Plus Product Manual 63

76 Various configurations are provided for linking the radios together depending on the network and the radio setup. The IPR100 can support up to four devices connected together in a conference mode in addition to the remote device. Other devices that you can connect to a conference include the IPR100, IPR110Plus, DX-Altus IPE, and the 960CC Console. Note Conference mode affects audio, DTMF, SELCALL, and CTCSS (subaudible) tones, but does not affect Serial Pass-Through mode. Enable Conferencing enables the conferencing mode. Default is disabled. Conference Mode selects the type of conference mode and determines whether the audio is linked or retransmitted to the other devices in the conference. The default setting is Peer to peer: No central server. In conference mode, several radios or consoles can connect together in a conference so that when any radio or console in the conference receives audio, it is transmitted to all (or some) of the other devices. The following lists the available conference modes. Peer to Peer: No Central Server Bridge Server: Audio Linked Dispatch Server: Audio not Linked Gateway: Audio Linked All IPR devices communicate with all the other IPR devices (see Peer-to-Peer on page 143). All IPR devices communicate with this IPR which forwards the audio to all remote devices (see Bridge Server on page 149). All IPR devices communicate with this IPR. This IPR does not forward any of the remote audio (see Dispatch Server on page 152). IPR devices communicate with this IPR device via a gateway router or server. This IPR forwards audio to/from the remote connection (see Multicast Gateway on page 155). For further information about conference mode configurations, refer to Connecting Multiple IPR Devices Using Conference Mode on page 143. Enable associates the IP address and port configuration for conference-mode transmissions. The default value is disabled. IP Address is the IPv4 address for this conference (i.e., the IPv4 address of the remote IPR device). As for the VoIP remote address, this can be a numeric (dotdecimal notation) IPv4 address or a domain name. Allowed values are a valid remote VoIP address. The default is to Transmit Port is the IP port number that is used for transmitting audio and control messages. As for the VoIP Transmit Port, two consecutive ports are used: the first port is for the actual audio data, and the second port is for control and status information. Allowed value is an even number from 1026 to The default port is Advanced Configuration

77 Advanced SIP Configuration Select SIP in Advanced mode to display the settings on the SIP (Session Initiation Protocol) configuration page, as shown in Figure 36. There are some significant differences in the SIP implementation between the IPR100 and IPR110Plus: IPR100 The SIP implementation in the IPR100 is used only for terminating two-party (unicast) sessions. It supports inbound connections from other Omnitronics IPR and DRG devices and some Omnitronics Consoles (RediTALK- Flex and 960SIP). IPR110Plus The SIP implementation in the IPR110Plus can also initiate connections to a remote VoIP device. It supports both inbound and outbound connections to other Omnitronics products, such as IPR and DRG radio gateway devices, consoles such as RediTALK-Flex and 960SIP, and third-party SIP devices and servers. Both IPR devices support the transmission of audio over VoIP links established by a SIP session; however, this feature can be disabled by setting the VoIP address to in the Remote IP Address basic setting (see Basic Settings on page 48). For further information about SIP, refer to Session Initiation Protocol (SIP) on page 175. Figure 36. SIP configuration settings IPR100/IPR110Plus Product Manual 65

78 SIP Settings The settings available under SIP Settings include the following: SIP Enable enables support for SIP connections. Selecting this option allows the IPR to accept incoming connections from other Omnitronics However, the IPR110Plus can also initiate SIP connections on demand. Default is disabled. Disable incoming connection (IPR110Plus only) prevents the IPR110Plus from accepting incoming SIP calls. SIP UDP Port is the port number used for SIP connections. The allowed values are 1025 to The default value of 5060 is the port assigned by the Internet standards body for SIP. Note The SIP Port must match the setting used by the device that will connect to the IPR100; and the value must be different to the port numbers used by the VoIP/RTP configuration. Default Transport Protocol is the default transport protocol used for transmitting SIP messages. The IPR100 supports both the User Datagram Protocol (UDP) and Transmission Control Protocol (TCP). This option is for compatibility with devices and servers that only support one of these transport protocols. Regardless of the value of this setting, the IPR100 will correctly respond to SIP messages sent to it using both UDP and TCP transport protocols. Allowed values are: UDP - User Datagram Protocol, and TCP Transmission Control Protocol. Default is: UDP - User Datagram Protocol. Note The Default Transport Protocol setting may not appear on the configration page as it depends on the firmware version installed in your IPR100. Only firmware versions 5.13 and later support both the UDP and TCP transport protocols, whereas, firmware versions older than this only support the UDP transport protocol. This setting does not appear for the older firmware. User Name (IPR110Plus only) is the name that is used to validate an incoming SIP connection. If an incoming SIP connection does not have the correct user name it will be rejected. When a SIP server is used, the user name is used to authenticate the IPR110Plus. A valid user name may consist of alphanumeric characters (no spaces or punctuation characters allowed). Default name is ipr. SIP Server Enable (IPR110Plus only) allows the IPR110Plus to register with a SIP server (required when interfacing to a phone). A SIP server is not required when connecting directly to another Omnitronics product. Default is disabled. Note When using a SIP server, the IPR110Plus may need to use a DNS server. If the IPR110Plus is using DHCP, the DNS server will be automatically configured. If the IPR110Plus uses a static IP address, the DNS value will need to be configured (see Advanced Network Settings on page 50). 66 Advanced Configuration

79 SIP Registrar Server (IPR110Plus only) is the IP address of the SIP server with which the IPR110Plus device registers. This can be a numeric IPv4 address (e.g ), a domain name (e.g. somehost.example.com), or a SIP URI (e.g. myhost.example.com). Default is blank (see SIP URI on page 176). SIP Outgoing Proxy (IPR110Plus only) is the address of the server used for SIP registration. Some SIP service providers use a different server for registration and making calls. The SIP service provider will provide the details for your configuration. This can be either a dot-decimal address or a fully-qualified domain name. SIP services generally work with DNS name resolution, so this address is most likely to be a fully-qualified domain name of the form host.org or host.net.au. Default is blank. SIP Server Password is the password that the IPR110Plus uses to register with the SIP server. Allowed value is a text string without any spaces. The default is blank. SIP Realm is a string to be displayed to users so they know which username and password to use, and is part of the authentication process (IPR110Plus only). This should contain at least the name of the host performing the authentication, and may additionally indicate the collection of users who might have access. An example might be registeredusers@omnitronics.com.au. Enable local status sounds allows the IPR to play a distinctive sound on the local Radio and Handset ports when a SIP connection is established or disconnected. Push-to-talk is activated automatically while the audio is played. The DTMF/SELCALL lead-in and lead-out delay settings are used to control the Push-to-talk lead-in and lead-out (see SELCALL/DTMF Settings on page 87). Default is disabled. The following lists the connection status sounds that the IPR can play. Connected connect.wav 4 short beeps Disconnected disconnect.wav Single beep, 0.5 second, 524 Hz tone. Connection in progress ringing.wav Ring tone Connection Failed failed.wav Busy tone Enable remote status sounds (IPR110Plus only) option allows the IPR110Plus to transmit a distinctive sound to the remote SIP device when a SIP connection is made or disconnected (see sounds listed above). If the IPR110Plus disconnects the SIP connection, it will play the disconnect sound, pause to allow the sound to be transmitted, and then disconnect the SIP connection. Default is disabled. Ring continuously whilst connecting (IPR110Plus only) option transmits a ringing sound to the radio whilst it is connecting to indicate that the remote phone is ringing and that the ring timer has not expired (see Ring Timeout setting on page 71). This is a specific requirement for terminal radios configured to automatically make an Individual call to a MotoTRBO radio system when the DTMF free-dial tones are used. This requires PTT from the IPR110Plus to keep the digital Individual call active. IPR100/IPR110Plus Product Manual 67

80 Disable changing transmit CODEC type option prevents the IPR device from changing the code type used to transmit audio when a SIP connection is received; the codec type used is specified on the VoIP/RTP configuration page. If this option is not selected, the IPR device may change the codec type used to transmit audio when a SIP connection is received. Select this option in situations when the configured codec should not be changed, such as when the GSM codec has been selected for the main VoIP link to reduce bandwidth usage; the IPR device will, however, still accept and decode received RTP audio packets that use a different codec type. Voice Activity Detection (VAD) The IPR110Plus is a gateway device between phone systems that do not provide an E&M control interface. To provide a mechanism to control radios requiring PTT signal, the IPR110Plus can perform Voice Activity Detection (VAD) on the audio received from the network by using the settings under the Voice Activity Detection (for SIP devices) heading, as shown in Figure 37. Figure 37. Voice Activity Detection settings PTT/Busy Control Mode determines how the IPR110Plus controls the local PTT (or Busy) output. Normal (controlled by remote device) (SIP) Connection Active This is the same functionality as provided by an RTP connection: remote busy status or CTCSS keying controls the local PTT/Busy output (this is the default setting). While a SIP connection is active, the local output is active. When the SIP connection is terminated, the output becomes inactive. This could be used with a full-duplex radio. 68 Advanced Configuration

81 (VAD) Voice Activity Detection When the IPR110Plus determines the remote device is sending voice data, the local PTT/Busy output is activated. If the remote device supports silence suppression (meaning that it will stop sending packets when it detects the operator is not talking), the IPR110Plus will use the presence of packets as part of its VAD algorithm. Use fixed threshold for VAD allows you to select a fixed threshold for detecting voice activity instead of using an adaptive threshold. You can select the fixed threshold from the drop-down list for the following parameter to adjust the sensitivity of the network Voice Activity Detection. If this option is deselected, the IPR110Plus will automatically adjust the sensitivity of the VAD. Default is disabled. Note The VAD threshold sensivity only effects the detection of voice data coming from the network and controlling the local Push- To-Talk output; and it does not effect the VAD algorithm used for audio input. Fixed VAD threshold sensitivity selects a threshold sensitivity for detecting voice activity. You can select one of the following settings: Receive Level Loudest Receive Level Loud Receive Level Quiet Receive Level Quietest Receive Level Minimum Least sensitive: PTT requires high level of audio from remote SIP phone before PTT is activated. Select this option for environments with high levels of background noise. Less sensitive than Receive Level Quiet: PTT activation requires more voice signal form the remote SIP phone. Select this option for environments with background noise loud enough to activate PTT. Not as sensitive as Receive Level Quietest: PTT activation requires more voice signal from the remote SIP phone. Select this option for environments with low levels of background noise. Less sensitive than Receive Level Minimum: PTT will be activated with a low voice signal from the remote SIP phone. Select this option if background noise is minimal or non-existent. Most sensitive: PTT will be activated with a minimum voice signal from the remote SIP phone (this is the default setting). Select this option when background noise is very low or non-existent. IPR100/IPR110Plus Product Manual 69

82 Connection Control The IPR110Plus can initiate and receive SIP calls. The settings under the Connection Control heading determine how a SIP session is controlled, as shown in Figure 38. Figure 38. SIP Connection Control settings Connection Control determines how outgoing SIP connections are made, and can be one of the following: Web Interface Received Tone Sequence Received and Transmitted Tone Sequence SIP connections can only be made from the IPR110Plus on the Connections page under Advanced Diagnostics. It will connect to all SIP addresses configured in the Remote Device List when using this method (see Remote Device List on page 73). This is the default. SIP connections from the IPR110Plus will be made based on the decoded tone sequence received on the 4W E&M port (you can also use the Connections page under Advanced Diagnostics to play a tone sequence into the IPR110Plus audio input). SIP connections from the IPR110Plus will be made based on the decoded tone sequence received on the 4W E&M port; or an outgoing tone sequence received from a connected VoIP device or console such as RediTALK-Flex (you can also Connections under Advanced Diagnostics to play a tone sequence into the IPR110Plus audio input). Tone Scheme selects the type of tone sequence used to control the SIP connection when connection control is via a tone sequence: it specifies the type of tones the IPR110Plus expects. If you are using SELCALL, all tone sequences must be the configured SELCALL sequence length. Tone schemes using DTMF must have DTMF enabled on the Tone Signalling page (see Tone Signaling Settings on page 75). The setting can be one of the following: 70 Advanced Configuration

83 SIP Tone Control: SELCALL SIP Tone Control: DTMF SIP Tone Control: DTMF Free Dial Uses SELCALL for SIP control (default). Uses DTMF for SIP control. Uses DTMF for SIP control to free dial the decoded number. The SIP Server must be enabled along with a valid address for the Registrar Server (see DTMF Phone Number Format on page 71). Connect All Sequence is the tone sequence to use when detecting a connectall tone sequence. When the IPR110Plus detects this sequence, it will connect all configured remote SIP devices. You can specify a DTMF or SELCALL sequence. If using SELCALL, this sequence must contain the number of non-space tones configured. This setting defaults to blank. Disconnect All Sequence is the tone sequence to use when detecting the disconnect-all sequence. When the IPR110Plus detects this sequence, it will disconnect all remote SIP devices. This disconnects any device that called the IPR110Plus even if it is not in the remote device list. You can specify a DTMF or SELCALL sequence. If using SELCALL, this sequence must contain the number of non-space tones configured. This setting defaults to blank. DTMF Call Start Digits specifies the digits used to signify the start of the phone number dial string (not dialled), and can include up to three valid DTMF digits (A to D, *, #) or left blank when no start digits are required. DTMF Call Stop Digits specifies the digits used to signify the end of the phone number dial string (not dialled), and must include at least one valid DTMF digit (A to D, *, #) up to a maximum of three digits. DTMF Call Termination Digits specifies the digits used to end a call, and must include at least one valid DTMF digit (A to D, *, #) up to a maximum of three digits. Ring Timeout specifies the maximum time (in seconds) to wait for the remote end to answer the call (2 to 300 seconds). Maximum Call Duration specifies the maximum call duration (in seconds) before the call is automatically hung up (10 to 300 seconds). Radio Inactivity Timeout specifies the maximum idle time (in seconds) between transmissions (PTT and BUSY) before the call is automatically hung up (10 to 300 seconds). Call Entry Timeout specifies the maximum time (in seconds) allowed entering a number before needing to enter the number again (1 to 60 seconds). DTMF Phone Number Format When you choose to control a SIP connection by using SIP Tone Control with DTMF Free Dial (see Tone Scheme setting on page 70), the IPR110Plus can use the DTMF tones from an analog terminal radio to free dial a SIP phone number. However, before a call can be made, the IPR110Plus must be successfully registered with a SIP Registrar Server. The SIP Registrar Server will form part of the free-dialled SIP URL. IPR100/IPR110Plus Product Manual 71

84 DTMF digits entered from the radio may contain a configurable prefix (not dialled) to signify the beginning of the SIP phone number dial string (see DTMF Call Start Digits setting on page 71). A mandatory suffix (not dialled) is used to signify the end of the phone number dial string (see DTMF Call Stop Digits setting on page 71). Once the IPR100Plus receives the last digit of the suffix, it will initiate the call and start dialling the phone number. For example, in the dial string AA1234Z, the AA prefix signifies the start of the phone number 1234, which will be dialled after the suffix Z is received. The maximum number of digits that can be dialled is 20. A configurable sequence of DTMF characters is used to hang up an existing call (see DTMF Call Termination Digits on page 71). Phone Status Tones If you enable the remote status tones (see Enable remote status sounds option on page 67), tones audibly inform the radio user of the call s status, and whether the remote end (dialed number) is ringing, engaged, connected, disconnected (hung up), or whether the call has failed for some other reason. Phone Status Tones: The IPR100Plus transmits the following tones to the radio network whilst the phone call is active, and shortly afterwards for some tones (e.g. hung up ): Ringing Hung up Engaged Disconnect Call active Single ring (about 1 second long) is transmitted to the radio to indicate that the remote phone is ringing. Continuous ring is transmitted to the radio whilst it is connecting to indicate that the remote phone is ringing (see Ring continuously whilst connecting setting on page 67) and that the ring timer has not expired (see Ring Timeout setting on page 71). This is a specific requirement for terminal radios configured to automatically make an Individual call to a MotoTRBO radio system when the DTMF free-dial tones are used. This requires PTT from the IPR110Plus to keep the digital Individual call active. The remote party (phone) has hung up the call. The remote party (phone) is engaged. The call to the phone has failed. A periodic short beep (1400Hz pip) played every 15 seconds indicates the phone call is active. Call Failure Sometimes a call will fail (cancelled) due to various reasons. Typically, a call failure will occur under the following timeout conditions: Time to wait for the remote to pick up the call is exceeded (see Ring Timeout setting on page 71). 72 Advanced Configuration

85 Call exceeds the maximum call duration (see Maximum Call Duration on page 71). No radio activity is detected once a call is active (see Radio Inactivity Timeout on page 71). Time to enter the dial string is exceeded: the dial string must be re-entered (see Call Entry Timeout on page 71). The SIP call fails. The ring timeout has expired (see Ring Timeout on page 71). Remote Device List Figure 39 shows the settings under the Remote Device List heading of the SIP configuration page (IPR110Plus only). You can use this list to specify the details for connecting and disconnecting remote IP devices using SIP. Figure 39. SIP remote device list You can specify up to twelve remote devices for the IPR110Plus to call using SIP. Each item in the Remote Device List has the following settings: SIP Address (URL) specifies the address of the remote device. A SIP endpoint has an identifier or Universal Resource Locator (URL) that is similar to a web address. The SIP URL is usually of the form sip:user@address:port, where user is the user name, address is the IP address of the device, and port is the UDP port used for SIP. It is not necessary to add sip: to the address in the IPR110Plus configuration. The port number is optional and will only be required if a port number other than the standard port of 5060 is used. If the address is invalid, the IPR110Plus will not be able to connect to the remote device. The default is value blank. Some example addresses are: sip:ipr@ Local network statically configured to IP address SIP user name set to default value of ipr. IPR100/IPR110Plus Product Manual 73

86 52A1212.local Local network configured to have a dynamic address. Serial number is 52A1212 and it is configured to use mdns local name resolution. SIP user name set to the default value. SIP Phone with user name fred connected via a SIP server named sipserver.org. Phone number via SIP to PSTN provider teleco.com. Connection to SIP softphone running on a PC with static IP address of and UDP port for SIP connections. Connect is the tone sequence used to connect the SIP device. For DTMF, only the characters 0-9, A, B, C, D, #, and *; and for SELCALL, only valid SELCALL characters and the configured SELCALL tone sequence length. Default value is blank. Disconnect is the tone sequence used to disconnect the SIP device. For DTMF, only the characters 0-9, A, B, C, D, #, and *; and for SELCALL, only valid SELCALL characters and the configured SELCALL tone sequence length. Default is blank. Compatible SIP Servers and Devices Omnitronics has tested the operation of various SIP servers, phones, and telephony gateways from different manufacturers for compatibility with the IPR110Plus. The following is a list of compatible devices. SIP Soft Phones (Windows) LIN-Phone XLite 4.0 SJPhone 1.65 NCH Express Phone 4.0 3CX SIP Phone SIP Telephony Servers Asterisk Avaya BBP Global Engin VoIP iinet VoIP IPTel (Open SER) Mitel 3300 PBX (v5.45 or later firmware) SIP Telephony Gateways Polycom SIP Phone (requires SIP Server) Kamailio SIP Server NCH Axon PBX System Party SIP SIP Express Router SipXTapi 3CX Phone System for Windows Cisco SPA8000/SPA8800 IP Telephony Gateway (outbound calls only) 74 Advanced Configuration

87 Tone Signaling Settings Select Tone Signaling (IPR110Plus only) in Advanced mode to display the Tone Signaling settings, as shown in Figure 40. This configuration page consists of four individual tab pages of settings: DTMF/SELCALL, EIA Tone Remote, Guard Tone, and MDC1200. Figure 40. Tone signaling configuration page The IPR110Plus supports various tone and data signaling schemes by detecting and converting the signaling information from analog to a digital data packet. The data packet is then sent to the remote device that converts the data packet back to the analog source signal. This enables tone- and data-signaling schemes to be used with lossy compression codecs. The IPR110Plus supports MDC1200 data packets by detecting the modulated data, decoding it, and then sending it to the remote device. This enables MDC1200 to be sent on links with GSM or other compression codecs. It also enables MDC1200 to be converted to and from SELCALL data. The IPR110Plus supports EIA Tone Remote signaling. This consists of one or two tones sent at the start of a transmission. In some radios, these tones are used to change channels or to control radio functions. The IPR110Plus supports guard tone and in-band tones. An in-band tone can be used to control radio transmitting and keying or can also be used to activate particular radio functions. To prevent the inband tone and the audio from interfering with each other, the IPR110Plus includes digital filters and detectors. IPR100/IPR110Plus Product Manual 75

88 The IPR110Plus supports both MDC1200 and SELCALL; however, only one can be enabled at a time: that is, enabling either function will disable the other. For instance, if you enable MDC1200 or EIA Tone Remote, the SELCALL settings will be disabled and will not appear on the DTMF/SELCALL page, as shown in Figure 41. Figure 41. SELCALL is disabled when MDC1200 or Tone Remote is enabled. DTMF/SELCALL The settings on the DTMF/SELCALL page are grouped under several headings as discussed in the following sections. General The settings under the General heading include the following: Tone Transmit Level is the output level for transmitting both SELCALL and DTMF tones to locally installed equipment. This level does not affect the audio transmit level and is not affected by the audio transmission level. Allowed values: -10 db to +10 db Default: 0 db Lead In Delay (10 x milliseconds) The IPR110Plus will assert the PTT relay for this length of time before starting to transmit a SELCAL or DTMF tone. This is to ensure the radio is on and transmitting correctly before the tone is transmitted. Allowed values: 2 to 255 (20ms to 2550ms). Default: 100 (1000ms). Lead Out Delay (10 x milliseconds) The IPR110Plus will hold the PTT relay on for this time after a DTMF or SELCAL tone. This is to ensure the radio does not turn off before the whole tone has been received. Allowed values: 2 to 255 (20ms to 2550ms). Default: 50 (500ms). DTMF The settings under the DTMF heading include the following: DTMF Detection enables the local detection of DTMF tones. If this is selected, the IPR110Plus will locally decode DTMF tones. When it receives a valid DTMF tone, it will encode it as a data packet and send it to the remote IPR110Plus. At the remote IPR110Plus, when the data packet is received, it will generate a corresponding DTMF tone sequence. This feature is enabled by default. 76 Advanced Configuration

89 DTMF Tone Period (in milliseconds) specifies the tone period and the period of silence used for generating DTMF signals. The allowed values are 100 milliseconds and 50 milliseconds. Some equipment with slow detection periods may require the 100 millisecond option, which is the default setting. SELCALL (Selective Calling) The settings under the SELCALL (Selective Calling) heading include the following: SELCALL Enable allows the IPR110Plus to locally detect Selcall. If this option is selected, the IPR110Plus will locally detect and decode Selcall tone sequences. When it receives a valid Selcall sequence, it will encode it as a data packet and send it to the remote IPR110Plus. At the remote IPR110Plus, when the data packet is received, it will generate a Selcall sequence with the same numbers. The default setting is enabled. SELCALL Scheme specifies the type of Selcall scheme to be used. The supported SELCALL schemes are: EEA, ZVEI-I, ZVEI-II, ZVEI-III, PZVEI, CCIR, EIA, and DZVEI. The default setting is CCIR. Number of Tones specifies the number of tones and gaps (silence) in a valid SELCALL sequence. The allowed number of tones is 1 to 20. Default is 5. SELCALL Tone Period (milliseconds) is the duration of each tone or gap (silence) in the sequence. The period can range from 20 to 100 milliseconds. The default setting is 20 milliseconds. Tone Position and Type shows the position of each configured tone and the how the tone is configured: the IPR110Plus can be configured to detect a particular tone or silence duration. The possible values are: Tone: Normal Period Tone: Extended Period Silence: Normal Period Silence: Extended Period Specifies a tone that is equal in duration to the period of the configured tone. Specifies a tone that is twice the duration of the period of the configured tone. Specifies a period of silence that is equal in duration to the period of the configured tone. Specifies a period of silence that is twice the duration of the period of the configured tone. When configuring these settings, several rules are applied to ensure the tone sequence is valid: the first and last tone positions must be configured as a tone, and an extended tone period can only be configured in a position after a silence period. Example Selcall Configurations To use the selcall feature, select the SELCALL Enable option, which enables all of the selcall settings, as shown in Figure 42. In this example, the selcall tone scheme is set to CCIR and five tones are configured each with a period of 20ms. IPR100/IPR110Plus Product Manual 77

90 Figure 42. Example of CCIR source selcall configuration In the example shown in Figure 43, the selcall tone scheme is set to CCIR, the tone period is set to 33ms, and four tones are configured as the source address followed by a double-width gap, then four tones for the destination address with a gap, and two status tones. Figure 43. Example of CCIR source and destination selcall configuration Figure 44 shows the selcall tone scheme set to EIA with six tones configured each with a tone period set to 40ms. The first four tones are normal tones followed by a double-width gap followed by an extended ( double-width ) status tone. Figure 44. Example of EIA selcall configuration 78 Advanced Configuration

91 EIA Tone Remote Select the EIA Tone Remote tab to display the EIA Tone Remote settings, as shown in Figure 45. A EIS tone remote, also known as a tone remote, is a signaling system used to operate a two-way radio basestation by remote control. A tone remote (sequence of two tones) can be used to control certain radio functions, such as keying up the transmitter or changing channels. Figure 45. Channel change to tone remote conversion Tone remotes send commands to a remote radio base station using function tones, a sequence of two tones. Typically EIA tone remotes consist of a high-level tone followed by a low-level tone. A continuous low-level tone follows. Voice is multiplexed over the tone. The low-level continuous tone is often called the low-level guard tone. The low-level tone is present at the same time as transmitted voice, and is the same tone as the high-level tone. A notch filter eliminates the low-level tone from the transmit audio. The Tone Remote section includes the following settings: Tone Remote Enable enables the transmission and detection of tone remote frequencies as data packets. If this option is not set, tone remote frequencies will be transmitted as normal audio. This function is disabled by default. Number of Tones specifies the number of control tones to detect or transmit. This number does not include the high-level tone (if used). The high-level tone is enabled on the Guard Tone page. Allowed values: 1 or 2. The default is 1. Transmit Level is the transmit level for the generated tone remote. Allowed values: 0 to -20dBm. Default level is -20dBm. Tone duration is the duration (in milliseconds) of the transmitted tone remote information. If the number of tones is set to two, both tones are the same duration. Allowed values: 40 to 255ms. Default is 100ms. Detect tones at start of transmission only ensures that tone remotes are detected only at the start of a transmission. This is based on local radio busy and detection of the guard tone. The value prevents the IPR110Plus from incorrectly detecting tones in normal speech. This function is selected by default. IPR100/IPR110Plus Product Manual 79

92 Channel change enable is a compatibility option for Omnitronics VoIP-based radio-dispatch systems such as DX-Altus, RediTALK, or 960SIP that support channel change. When this option is selected, the IPR110Plus will convert DTMF messages into a tone remote sequence. Typically a 960CSD will send a channelchange request as a DTMF string with the format *CCCC#, where CCCC is the channel number. With this option selected, when the IPR110Plus receives a DTMF data packet, it will convert it into either a one- or two-tone remote sequence. This feature is selected by default. Enable frequency detection selects the frequencies to be used in the detection of tone remotes. To prevent false decodes, frequencies that are not required can be disabled. Channel Change to Tone Remote Conversion For an IPR110Plus with only a single tone remote configured, the channel number is from 1 to 16 and specifies the frequency as per the channel-frequency table shown in Figure 45. For example, if the channel number 14 is selected on an Omnitronics console, the DTMF sequence of *15# will be sent, and this will be translated into F14, which according to the frequency detection table, is 1850Hz. For an IPR110Plus with two tones configured as a tone remote, the channel number ranges from 1 to 256, and the tones are determined as follows: the first tone is the channel-change number modulus 16 and the second tone is the channel-change number divided by 16. For example, if the channel-change number 33 is selected on the Omnitronics console, the DTMF sequence *33# will be sent; and this will be translated into the first tone F1 550Hz (i.e. 33 modulus 16 = 1), and the second tone is F2 650Hz (i.e. 33 divided by 16 = 2). Guard Tone Select the Guard Tone tab to display the Guard Tone settings, as shown in Figure 46. A guard tone (or in-band tone) is mixed with the audio and can be used to control radio transmission. The tone remote functions are generally used with a guard tone, however, it is possible to use a guard tone without enabling the tone remote functionality. Figure 46. Guard tone configuration 80 Advanced Configuration

93 The settings available under the Guard Tone heading include the following: Guard tone enable enables the guard-tone detection and generation feature. The default is enabled. Frequency specifies the frequency of the guard tone. Allowed values: 2100, 2175, 2325, 2500, 2600, and 2970Hz. The default frequency is 2175Hz. Generate guard tone while Push To Talk output active provides an interface to a radio that uses guard tone to control radio keying from a device, console or dispatch system that does not natively support in-band radio keying. When the push-to-talk is activated, the IPR110Plus will generate a guard tone. If the high-level tone is enabled, it will be generated at the start of the transmission. The feature is not selected by default. Half Duplex Mode option enables the half-duplex mode of operation. Many systems use guard tones over a two-wire interface to control keying. To interface such systems to an IPR110Plus, a two-wire to four-wire converter may be required. Due to impedance mismatches in the converter, audio transmitted to the converter can be partly reflected. This can lead to false detection of an incoming tone whilst the IPR110Plus is transmitting a tone. If the Half Duplex Mode is enabled, any received tone is ignored whilst the IPR110Plus is transmitting either a guard tone or a tone remote tone. Disabled by default. Low transmit level is the transmission level for the low-level tone that is mixed with normal audio. It is possible to disable the low-level transmit tone completely; this can be used in a scenario where you wish to detect the guard tone and then filter out the tone. Allowed values: Disabled, -10 dbm, -12 dbm, - 15 dbm, -18 dbm, -20 dbm, -25 dbm and -30 dbm. Default: -30 dbm. Low-level tone hold time is the time to hold the guard tone on when communications is lost. In environments with very low levels of guard tone or bad signal-to-noise ratios, the tone detection may be intermittent. In this case, this value may be used to filter out transient losses of guard tone signal. Allowed values: 190 to 20000ms. Default: 2000ms. Enable high-level tone option enables transmitting a higher level tone at the start of the transmission burst. If tone remote functions are transmitted, this high level tone is sent before the tone remote tones. Default: Unchecked High transmit level selects the output level of the generated high-level guard tone. Allowed values: 0dBm to -20dBm; Default: -20dBm. High-level tone duration is the duration of the leading high-level guard-tone sequence in milliseconds. Allowed values: 40 to 1000ms. Default: 100ms. MDC1200 Select the MDC1200 tab to display the MDC1200 settings, as shown in Figure 47. MDC signaling is a 1200bps audio frequency signaling scheme. MSK (minimum shift keying) modulation is used to encode short packets of data, and each packet consists of a 16-bit command type and a 16-bit unit identifier. The IPR110Plus can decode and encode these data packets. IPR100/IPR110Plus Product Manual 81

94 Figure 47. MDC1200 configuration Enable MDC1200 enables the MDC1200 detection and generation feature (disabled by default). MDC1200 transmit level specifies the gain that is applied to the MDC1200 packet. Allowed values: +10dB to -10dB. The default is 0dB gain. Activate Push to Talk Output forces the IPR110Plus to assert the local PTT output when sending MDC1200 data. The lead-in and lead-out times configured on the DTMF/Selcall configuration tab will be used. This value has no effect if the MDC1200 to SELCALL Tone Translation mode is enabled (see MDC1200 to SELCALL Translation on page 83). This setting is disabled by default. Enable Analog P25 Mode enables the analog P25 mode, and after the configuration is saved, displays the tab for the Analog P25/MDC1200 page (see Analog P25/MDC1200 below). Analog P25/MDC1200 The Analog P25/MDC1200 configuration page is shown in Figure 48. The settings on this page are specific to the IPR110Plus in a DX system that interfaces to P25 radio systems using the legacy analog interface. The P25 system sends and receives information using the MDC1200 message protocol. The IPR110Plus translates these messages into messages that are proprietary to the DX-Altus system. Figure 48. Enabling the analog P25/MDC1200 configuration page 82 Advanced Configuration

95 Emergency Mode The settings under Emergency Mode include the following: Emergency mode enable enables the emergency mode and the command used to activate emergency mode. Received command to activate emergency mode specifies the MDC1200 command that is used to activate emergency mode. When the IPR110Plus receives this command, it will activate emergency mode. In this mode, the IPR110Plus operates as follows: a) Terminates active SIP connections and ignores subsequent SIP connections. b) Terminates P25 Individual Call in progress and ignores subsequent Individual Calls. c) Reports the emergency status to the DX system via the IPE. Individual Call Mode The settings under Individual Call Mode allow a DX-Altus operator, or caller from a SIP phone or PBX, to call a specific mobile without all P25 mobiles participating in the call. Once this mode is enabled, the IPR110Plus will send an MDC1200 command before activating PTT. Individual call mode enable enables the Individual Call Mode and enables the entire settings specific to this mode. Individual call mode command specifies the MDC1200 command that is sent at the start of each PTT transmission. Individual call mode timeout is the timeout period (in seconds) used in individual call mode. If PTT activity is not detected within this timeout, the individual call mode will be automatically terminated. Individual Call DTMF to Radio Conversion enables SIP callers to place an Individual Call. To make an individual call, the caller must enter the following DTMF digits: *NNNN# where NNNN is the four-digit radio number. For example, to call radio ID 0199, the user could enter either *0199# or *199#. Note For this function to work correctly, the SIP phone must support DTMF using the format described in RFC2833. Many phones do not use this format and must be configured accordingly. MDC1200 to SELCALL Translation The settings under MDC1200 to SELCALL Translation include the following: Enable MDC1200 to SELCALL Tone Translation enables the MDC1200 tone translation feature. This converts MDC1200 tones into a format compatible with Omnitronics systems that use SELCALL tones. This function is required if the IPR110Plus is used with Omnitronics dispatch systems such as DX-Altus, 950, or RediTALK-Flex. IPR100/IPR110Plus Product Manual 83

96 This MDC1200 tone translation section also includes two translation tables that are enabled when you select the Enable MDC1200 to SELCALL Tone Translation setting: MDC1200 Translation to Transmitted Tone is a table for MDC1200 data that is received locally: it is used to create the message that is sent to the remote device via the network. Received Tone to MDC1200 Translation is a table used to convert messages received via the network into a local MDC1200 message that is sent to the local radio or device. An MDC1200 message consists for two fields: a four-digit Command ID that determines the type of message sent, and a four-digit Unit ID that determines the source or destination of a particular message. MDC1200 Translation to Transmitted Tone Figure 49 shows the MDC1200 Translation to Transmitted Tone section. Each row in the table includes the settings described below. Figure 49. Translation of received MDC1200 command to transmitted tone Received MDC1200 Command MDC1200 Command type. Allowed values: Various MDC1200 Commands. Default: (0000) Not Used Received MDC1200 Unit ID When set to Unit ID, the Received MDC1200 Unit ID is used in the current message translation or discarded. When set to Unit ID (*Saved), the Received MDC1200 Unit ID is saved and it can be used in the next transmitted MDC1200 message. This is useful in systems where an acknowledgement needs to be sent the radio that initiated a particular function. Transmitted Tone Leading Leading digits added to the start of the transmitted tone sequence. Allowed values: string 0 to 8 digits Default is blank Transmitted Tone Trailing Trailing digits appended to the end of the transmitted tone sequence. Allowed values: string 0 to 8 digits. Default is blank. When a valid MDC1200 data packet is received from the local device or radio, and the command type matches the command type specified in a row of the table, a tone sequence is built by adding the leading and trailing digits to the message unit id. 84 Advanced Configuration

97 Received Tone to MDC1200 Translation Figure 50 shows the Received Tone to MDC1200 Translation section. Each row in the table includes the settings described below: Figure 50. Translation of received tone to transmitted MDC1200 command Received Tone Leading specifies the leading digits to match with received tone sequence. Allowed values: a string of 0 to 8 digits. Default is blank. Received Tone Unit ID specifies the MDC1200 unit identity when set to Unit ID. The corresponding four digits from the selcall tone sequence are used to determine the MDC1200 Unit ID. When set to BLANK, no tones are expected, and the entire selcall should be listed in the Leading text box. Received Tone Trailing specifies the trailing digits to match with the received tone sequence. Allowed values: a string of 0 to 8 digits. Default is blank. Transmitted MDC1200 Command is the MDC1200 command to which the received tone sequence is translated. Allowed values: various MDC1200 commands listed in the dropdown list. Default is (0000) Not Used. Transmitted MDC1200 Unit ID specifies the MDC1200 Unit ID that is sent when set to Selcall Unit ID. The four digits from the received selcall are used to determine the MDC1200 Unit ID. When set to Saved Unit ID, the last received MDC1200 message is used to determine the MDC1200 Unit ID. Transmitted MDC1200 Push to Talk determines if push-to-talk is active while transmitting an MDC1200 command. Some radios will only accept certain commands while push-to-talk is in the correct state. The lead-in and lead-out times from the DTMF/SELCALL page are used for the controlling the timing of the push-to-talk output pulse. Allowed values: various MDC1200 commands listed in the dropdown list. Default setting is (0000) Not Used. When a tone sequence is received from the network, the MDC1200 function will scan this table until if finds a match where the leading sequence (if not blank) and the trailing sequence (if not blank) are the same as the received tone sequence. When a match is found, the four digits between the leading and trailing sequences are interpreted as the unit ID. An MDC1200 signaling sequence is created using the command type from the row in the table and the calculated unit identifier. IPR100/IPR110Plus Product Manual 85

98 Paging Tones Select Paging Tones in Advanced mode to configure the Paging Tone settings, as shown Figure 51. To enable the paging functionality, select the Paging tone enable option, and then configure the settings as required. Once you have configured the settings, click Save. Figure 51. Configuration of paging tones Paging scheme is the scheme to use for paging this defaults to Motorola Quick Call 2 (QC2) and cannot be changed. Transmit level is the audio level of the transmit tones and ranges from 0dBm to -20dBm with the default set to -10dBm. Pause duration is the time (in milliseconds) to pause after sending tone 1 before sending tone 2 and ranges from 0 to 200ms with default set to 0ms. Tone 1 duration is the time (in milliseconds) to transmit tone 1 and ranges from 990ms to 1100ms with the default set to 1000ms. Tone 2 duration is the time (in milliseconds) to transmit tone 2 and ranges from 2800ms to 3200ms with the default set to 3000ms. The following information provides details about the radio-paging implementation in the IPR110Plus product. Supports only the Motorola Quick Call 2 paging scheme. Configuration of the Basic Paging feature includes the following parameters: Tone scheme (Motorola QuickCall 2 only), Tone duration, PTT lead-in, PTT leadout, Tone output level. IPR110Plus does not provide feedback when transmission of the paging tone has completed. Paging tones cannot be used with Selcall, MDC1200, or EIA tones. Paging functionality is transmit-only no detection is used. The same IP message (from SCU) as used for Selcall is used to control paging on the IPR110Plus there will be no confusion as to whether Selcall or paging tones are to be played out as the IPR110Plus will allow only one at a time to be configured. 86 Advanced Configuration

99 The SCU will send the paging number entered by the user to the IPR110Plus, which will then generate the correct tones based on the paging scheme. Status display will show the last transmitted paging tone sequence. For further details about paging, refer to the DX-Altus Basic Paging Supplement (document number MNL-00136). SELCALL/DTMF Settings Select SELCALL/DTMF (IPR100 only) in Advanced mode to display the SELCALL and DTMF settings, as shown in Figure 52. The IPR100 supports SELCALL and DTMF by detecting the tone, encoding it as a data packet and sending it to a remote device. This enables SELCALL and DTMF to be sent on links with GSM or other codec. Figure 52. DTMF and SELCALL settings General The configuration settings under the General section include the following: Tone Transmit Level is the output level for transmitting both SELCAL and DTMF tones to locally installed equipment. This level does not affect (nor is affected by) the audio transmit level. The allowed values are -10 to +10dB. The default setting is 0dB. IPR100/IPR110Plus Product Manual 87

100 Lead In Delay (10 x milliseconds) is the length of time that the IPR100 asserts the PTT before starting to transmit a SELCAL or DTMF tone. This is to ensure the radio is on and transmitting correctly before the tone is transmitted. The allowed values are 2 to 255 (20 to 2550 milliseconds). The default value is 100 (1 second). Lead Out Delay (10 x milliseconds) is the length of time that the IPR100 holds the PTT on after sending a DTMF or SELCAL tone. This is to ensure the radio does not turn off before the whole tone has been received. The allowed values are 2 to 255 (20 to 2550 milliseconds). The default value is 50 (500 milliseconds). DTMF The configuration settings under the DTMF section include the following: DTMF Detection option enables local detection of DTMF and uses the value in DTMF Tone Period (in milliseconds. If this is selected, the IPR device will locally listen for and decode DTMF tones. When it receives a valid DTMF tone, it will encode it as a data packet and send it to the remote IPR device. At the remote IPR device, when the data packet is received, it will generate a corresponding DTMF tone sequence. The default value is disabled. DTMF Tone Period (in milliseconds) is the duration of the Tone and Silence periods is used for generating DTMF signals. It may be necessary select the DTMF Detection option above with some equipment that has slow detection periods. The allowed values are 50 and 100 milliseconds. The default value is 100 milliseconds. SELCALL (Selective Calling) The configuration settings under the SELCALL (Selective Calling) section include the following: SELCALL Detection option enables local detection of SELCALL. If this is selected, the IPR device will locally look for and decode SELCALL tone sequences. When it receives a valid SELCALL sequence, it will encode it as a data packet and send it to the remote IPR device. At the remote IPR device, the data packet will be received and the remote IPR device will generate a SELCALL sequence with the same numbers. The default value is disabled. SELCALL Scheme specifies the type of SELCALL scheme in use. The supported SELCALL schemes are EEA, ZVEI1, ZVEI2, ZVEI3, PZVEI, CCIR, EIA and DZVEI. The default setting is CCIR. Number of Tones is the number of tones and gaps in a valid SELCALL sequence. The allowed values are 1 to 20. Default number of tones is 5. SELCALL Tone Period (milliseconds) is the duration in milliseconds of each tone in the sequence. The allowed values are 20 to 100 milliseconds. The default is 20 milliseconds. 88 Advanced Configuration

101 Enable Status Gap enables a gap between the first part of the SELCALL sequence and the final status digit. The default setting is unselected (status gap disabled). Status Gap Length configures both the length of the gap and the length of the final digit of the SELCALL sequence. The length is either the same as the SELCALL period or twice the SELCALL period. The allowed values are: One-Tone or Two-Tones. The default setting is Two-Tone. Tone Position and Type The settings on the DTMF/SELCALL page available under the Tone Position and Tone Type headings include the following: Tone Position and Type shows the position of each configured tone and the how the tone is configured: the IPR100 can be configured to detect a particular tone or silence duration. The possible values are: Tone: Normal Period Tone: Extended Period Silence: Normal Period Silence: Extended Period Specifies a tone that is equal in duration to the period of the configured tone. Specifies a tone that is twice the duration of the period of the configured tone. Specifies a period of silence that is equal in duration to the period of the configured tone. Specifies a period of silence that is twice the duration of the period of the configured tone. When configuring these settings, several rules are applied to ensure the tone sequence is valid: the first and last tone positions must be configured as a tone, and an extended tone period can only be configured in a position after a silence period. IPR100/IPR110Plus Product Manual 89

102 CTCSS Settings Select CTCSS (IPR100/IPR110Plus) in Advanced mode to display the CTCSS configuration page, as shown in Figure 53. Figure 53. CTCSS configuration settings Tone Detection The configuration settings available under Tone Detection include the following: Enable Tone Detection/Transmission option allows the IPR to detect CTCSS tones and transmit them to the network as data packets. The voice circuitry includes a band-pass filter so that CTCSS tones will not be sent as audio data. Default is disabled (Tone Detection/Transmission disabled). Tone Detection Validation Time is the period (in milliseconds) during which a frequency must be present before it is considered to be a valid tone. Longer periods make CTCSS tone detection more reliable but will increase the propagation delays of CTCSS information. The allowed values are 10 to 1000 milliseconds. Default is 150ms. Enable high-pass filter for audio (300Hz) enables a high-pass filter in the DSP that will remove the CTCSS tones from the audio path. The default setting is unselected (high-pass audio filter disabled). 90 Advanced Configuration

103 Local Keying and Tone Transmission The configuration settings available under Local Keying and Tone Transmission include the following: Transmit Level is the level of attenuation applied to the locally generated CTCSS tone. It is independent of transmit audio and transmit SELCALL/DTMF levels. Allowed values: -18dB to 0dB. Default setting is 0dB (no attenuation). CTCSS Lockout Time is the timeout period (in milliseconds) used in fast keying mode and normal keying mode. If a remote CTCSS is not detected within this period while the remote PTT signal is detected, the local PTT signal will not be activated. Default setting is Generate CTCSS while Push To Talk output active ensures that the IPR110Plus will automatically generate and mix a CTCSS signal to the local audio output. This enables systems that do not support CTCSS to be interfaced with radios that require a CTCSS signal to transmit. CTCSS Push To Talk Frequency is the CTCSS frequency to generate while local push-to-talk output is active. Enabled Frequencies The IPR device can detect up to 33 CTCSS frequencies simultaneously and can generate one at a time. The CTCSS frequencies that the IPR can detect and generate (in Hz) appear under Enabled Frequencies, as shown in Figure 54. Figure 54. List of enabled frequencies Note To enable a frequency, select the check box next to the frequency. If you attempt to enable more than 32 frequencies, an alert message is displayed. For a CTCSS tone to be correctly detected and transmitted, that frequency must be enabled on both IPR devices, i.e., on both the detecting and the transmitting IPR devices. IPR100/IPR110Plus Product Manual 91

104 Serial Data Settings Select Serial Data (IPR100 only) in Advanced mode to display the Serial Data configuration page, as shown in Figure 55. This page contains the settings for configuring the RS232 serial port (DCE) on the rear panel of the IPR100. Figure 55. Serial Data configuration showing the Serial Pass-Through settings The serial port supports two modes of operation: Serial Pass-Through mode and Serial Monitor mode; however, only one of these modes can be in use at one time. Serial Pass-Through Mode provides a transparent link that can be used to connect RS232 devices over the Internet. Support for multi-drop serial communications is provided for seven additional remote destination addresses. All serial and flow control data is sent to all the remote addresses. Serial Monitor Mode is not intended for normal use, but is intended only for technicians or Omnitronics support engineers to assist in initial configuration, diagnosing problems, and troubleshooting (see Serial Monitor on page 117). Serial Pass-Through Mode The IPR100 provides the ability to transmit and receive RS232 data between a pair of IPR devices. This uses a UDP connection between the two units to tunnel RS232 data over the network. Enabling the Serial Data Pass-Through mode disables the Serial Monitor mode on the serial port. The serial pass-through function of the IPR100 is compatible with both the IPR110Plus and the IPR400. It includes the following settings: 92 Advanced Configuration

105 Enable Serial Pass Through Mode selects the serial data pass-through mode and disables the serial monitor mode on the serial port. The default is disabled. Note If Serial Pass-Through mode is enabled, Serial Monitor mode is disabled. Remote IP Address is the IP address of the remote IPR100 to which the serial data will be sent. Like the remote VoIP address settings, this can be a 32-bit IPv4 address or a domain name. The default is Note The Remote Address does not need to be the same as the VoIP Remote Address, which means that the serial pass-through mode can be used to send serial data to any valid IP address. UDP Port Number specifies the TCP/IP port number that is used for sending the data, which must be set to the same value on both IPR100 devices. The allowed values are 1024 to The default setting is Table 4 lists the compatibility of the serial pass-through mode between the IPR100, IPR110Plus, and the IPR400. Table 4. Compatibility of the Serial Pass-Through Protocol Serial Pass-Through Protocol IPR100 (Local/Int l) IPR110Plus (Local/Int l) IPR400 (Local/Int l) Original 4.14/ i 4.14/ i 3.06/ i New 5.00/ i 5.00/ i 3.07/ i The original serial pass-through protocol existed up to version 4.14/ i of the IPR100 and IPR110Plus firmware and up to version 3.06/ i for the IPR400. The protocol changed to support the multi-drop feature, which was implemented in version 5.00/ i of the IPR100 and IPR110Plus and version 3.07/ i of the IPR400. Therefore, the incompatibility to previous versions lies at version 5.00/ i of IPR device and version 3.07/3/07.02i of the IPR400. Version 5.00/ i of the IPR device and version 3.07/3/07.02i of the IPR400 are compatible with each other. This change in protocol is hardware independent allowing devices in the field to be upgraded to the latest firmware version and therefore support the latest serial protocol. IPR100/IPR110Plus Product Manual 93

106 Serial Port Parameters The following settings must match the serial settings of the device connected to the serial port of the IPR100. Baud Rate is the serial data rate in bits per second. The allowed values are: 1200, 2400, 4800, 9600, 19200, and The default is Data Bits specifies the number of bits in the data. The allowed values are 7 or 8. The default is 8. Stop Bits specifies the number of bits used to designate the end of the data. The allowed values are 1 or 2. The default is 1. Parity is a basic error-detection scheme. The allowed values are: None, Odd or Even. The default is None. Flow Control specifies the method used to control the flow of data. The allowed values are None, XON/XOFF or RTS/CTS. Default is None. Inter character timeout controls how the RS232 data is collected and transmitted over the network. When the IPR device starts receiving data, it will keep collecting data until it gets a time-out or the maximum message length is reached. The allowed values are 1 to 1000ms. The default is 100ms. Note If you set the Inter Character Timeout to a long value, the communication will be very slow. Maximum Message Length is the largest block of data (in bytes) that will be sent over the network in a single packet. The allowed values are 4 to The default is Multi-Drop Mode The configuration settings available under Multi-drop Mode include the following: Enable multi-drop mode enables the ability to send data to multiple remote IPR devices. Multi-drop Address 1 Multi-drop Address 7 are used to specify the address to use for the corresponding multi-drop address. Simply type the multi-drop address you want to use in the appropriate text boxes. 94 Advanced Configuration

107 Serial Mode Settings Select Serial Modes (IPR110Plus only) in Advanced mode to access the settings on the Serial Modes configuration page as shown in Figure 56. This page contains the settings for configuring the RS232 serial port (DCE) on the rear panel of the IPR110Plus (this is the same as the Serial Data configuration page in the IPR100). Figure 56. Serial Pass-Through settings The serial port is capable of supporting three modes of operation: Serial Pass- Through mode, Channel-Change Control mode, and Serial Monitor mode; however, only one of these modes can be in use at one time. Serial Pass-Through Mode providesa transparent link that can be used to connect RS232 devices over the Internet. Support for multi-drop serial communications is provided for seven additional remote destination addresses. All serial and flow control data is sent to all the remote addresses. Serial Channel-Change Mode allows the IPR110Plus to control the channelchange functionality on compatible radios connected via the RS232 serial port (DCE) on the rear panel (see Channel Change Mode on page 98). Serial Monitor Mode is not intended for normal use, but is intended only for technicians or Omnitronics support engineers to assist in initial configuration, diagnosing problems, and troubleshooting (see Serial Monitor on page 117). Serial Data Pass-Through mode and Radio Channel-Change Control mode are configurable modes, and both are available as tabs on the Serial Modes configuration page. The Serial Pass-Through mode is discussed in the following section. IPR100/IPR110Plus Product Manual 95

108 Serial Data Pass-Through Mode The IPR110Plus provides the ability to transmit and receive RS232 data between a pair of IPR devices. This uses a UDP connection between the two units to tunnel RS232 data over the network. Enabling the Serial Pass-Through mode disables the Channel-Change Control mode and the Serial Monitor mode on the serial port. The serial data pass-through function of the IPR110Plus is compatible with both the IPR100 and IPR400. Support for multi-drop serial communications is provided for seven additional remote destination addresses. All serial and flow control data is sent to all the remote addresses. The configuration settings under Serial Pass-Through include the following: Enable Serial Pass-Through selects the serial data pass-through mode and disables the serial monitor mode on the serial port. The default is disabled. Note If Serial Pass-Through mode is enabled, both Serial Channel- Change mode and Serial Monitor mode are disabled. Remote IP Address is the IP address of the remote IPR110Plus to which the serial data will be sent. Like the remote VoIP address settings, this can be a 32- bit IPv4 address or a domain name. The default is Note The Remote Address does not need to be the same as the VoIP Remote Address, which means that the serial pass-through mode can be used to send serial data to any valid IP address. UDP Port Number specifies the TCP/IP port number that is used for sending the data, which must be set to the same value on both IPR100 devices. The allowed values are 1024 to Default is Table 5 lists the compatibility of the serial pass-through mode between the IPR100, IPR110Plus, and the IPR400. Table 5. Compatibility of the Serial Pass-Through Protocol Serial Pass-Through Protocol IPR100 (Local/Int l) IPR110Plus (Local/Int l) IPR400 (Local/Int l) Original 4.14/ i 4.14/ i 3.06/ i New 5.00/ i 5.00/ i 3.07/ i The original serial pass-through protocol existed up to version 4.14/ i of the IPR100 and IPR110Plus firmware and up to version 3.06/ i for the IPR400. The protocol changed to support the multi-drop feature which was implemented in version 5.00/ i of the IPR100 and IPR110Plus and version 3.07/ i for the IPR400. Therefore, the incompatibility to previous versions lies at version 5.00/ i (IPR400) and version 3.07/3/07.02i (IPR400). Version 5.00/ i (IPR110Plus) and version 3.07/3/07.02i (IPR400) are compatible with each other. 96 Advanced Configuration

109 This change in protocol is hardware independent allowing units in the field to be upgraded to the latest firmware version and therefore support the latest serial protocol. Serial Port Parameters The following settings must match the serial settings of the device connected to the serial port of the IPR110Plus. Baud Rate is the serial data rate in bits per second (bps). The allowed values are: 1200, 2400, 4800, 9600, 19200, and The default is Data Bits specifies the number of bits in the data. The allowed values are 7 or 8. The default is 8. Stop Bits specifies the number of bits used to designate the end of the data. The allowed values are 1 or 2. The default is 1. Parity is a basic error-detection scheme. The allowed values are: None, Odd or Even. The default is None. Flow Control specifies the method used to control the flow of data. The allowed values are None, XON/XOFF or RTS/CTS. The default value is None. Inter character timeout (ms) controls how the RS232 data is collected and transmitted over the network. When the IPR device starts receiving data, it will keep collecting data until it gets a time-out or the maximum message length is reached. The allowed values are 1 to 1000 milliseconds. Default is 100ms. Note If you set the value too long, the communication will be very slow. Maximum Message Length (bytes) is the largest block of data that will be sent over the network in a single packet. The allowed values are 4 to The default is Note If the number of bytes of data exceeds this value, the data will be broken up to several smaller packets. Multi-Drop Mode The configuration settings available under Multi-drop Mode include the following: Enable multi-drop mode enables the ability to send data to multiple remote IPR devices. Multi-drop Address 1 Multi-drop Address 7 are used to specify the address to use for the corresponding multi-drop address. Simply type the multi-drop address you want to use in the appropriate text boxes. IPR100/IPR110Plus Product Manual 97

110 Channel Change Mode Select Serial Modes (IPR110Plus only) in Advanced mode, and then click the Channel Change tab to access the Channel Change page, as shown in Figure 57. Figure 57. Serial channel-change configuration page This page contains the settings for configuring the RS232 serial port (DCE) on the rear panel of the IPR110Plus to control the channel-change functionality on compatible radios. The serial channel-change mode of the IPR110Plus supports the following transceivers: Codan NGT series Spectra MX800 Simoco SRM9000 Tait TB8100 Base Station/Repeaters (CCI serial protocol) Icom radios supporting the PC Command V2 protocol The channel-change mode can be used with Omnitronics products, such as Alto (the DX-Altus Dispatch Console), RediTALK VoIP Dispatch Console, or 960CSD Console interfaced to an IPR device. The channels are allocated as follows: Available as standard channels Not supported Reserved for future use 999 Indicates loss of communications with the radio 98 Advanced Configuration

111 Channel numbers are used to report/control scanning and mute forcing on Codan radios only. This is only supported for DX64 Systems at this time (not IPRDispatch). 900 Scanning and Mute are off 901 Scanning On, Mute Off 902 Scanning Off, Mute On 903 Scanning On, Mute On When a mute-force command is received, in addition to sending the command to the radio, the IPR110Plus will simulate a busy signal from the radio. The serial channelchange feature accommodates radios that ignore serial channel-change request whilst having PTT active (like ICOM radios). Channel Change Parameters The serial channel-change settings under Parameters include the following: Enable serial radio channel change enables the serial channel-change mode and disables serial pass-through mode for this serial port. The default setting is deselected (i.e. serial channel-change mode disabled). Note If Serial Radio Channel Change mode is enabled, Serial Pass- Through mode and Serial Monitor mode are both are disabled Radio type is the type of radio that is under the control of the IPR. The allowed values are Codan NGT, Spectra MX800, Simoco SRM9000, Tait TB8100 & TM8000, ICOM v2, Elman RTV-1124, Jotron TR The default setting is Codan NGT. Serial baud rate is the data transfer rate in bits per second of the serial port. The allowed values are 1200, 2400, 4800, 9600, 19200, and Default is An IPR110Plus with firmware version 5.12 or later configured for serial channelchange has additional settings shown in Figure 58. These settings will not appear for older firmware. Additonal settings These settings only available for firmware version 5.12 and later Figure 58. Additional settings for newer firmware IPR100/IPR110Plus Product Manual 99

112 While the PTT disable during serial channel change option is selected, the sequence of events depicted in Figure 59 occurs each time a channel change is requested. Serial Channel Change request NO PTT disable? Send channel-change request to radio YES Override PTT to OFF state Start channel-change lead-out delay Start channel-change lead-in delay Lead-Out Elapsed? YES NO NO Lead-In Elapsed? YES Revoke PTT override Exit Figure 59. Sequence of steps for serial channel-change request Any requests to activate PTT on the associated radio during the above sequence will be ignored. The configurable settings apply to all radio types. The additional serial channel-change parameters (for firmware version 5.12 and later) include the following: PTT disable during serial channel change ensures that PTT will remain off for the specified lead-in and lead-out times during a channel change. This option is deselected by default. Channel change lead-in Time is the duration (in milliseconds) which the PTT output remains off prior to sending the serial channel change command. The allowed range is 0 to 5000ms. The default is 100ms. Channel change lead-out Time is the duration (in milliseconds) which the PTT output remains off after sending the serial channel change command. The allowed range is 0 to 5000ms. Default is 100ms. It is recommended that the PTT disable during serial channel change option is selected when ICOM radios are channel-changed from Omnitronics 960 consoles. Channel Configuration The channel-change command may take one of two forms: either a channel number or a channel name. For example, the Codan radio requires a channel name whereas the Spectra 800 requires a channel number. 100 Advanced Configuration

113 For radio types that require a channel name, the channel configuration table can be used to associate a channel name with a channel number. For radios that do not require a channel name, the channel configuration table is not used. A maximum of 64 channels entries can be configured. Figure 60 shows the settings under Channel Configuration and include the following: Channel is the radio channel number and corresponds to the channel-change number sent by, and reported to, the Omnitronics console. Setting this channel number to zero disables that particular entry in the Channel Configuration table. Allowed channels are 1 to 899 inclusive. The default is 0. Channel Name is the name configured for this channel in the radio. Leaving this field blank means this entry will be ignored. The default is blank. Figure 60. Channel configuration for serial channel change IPR100/IPR110Plus Product Manual 101

114 Changing the Passwords of User Accounts Select Change Password in (IPR100/IPR110Plus) Advanced mode to display the password configuration page, as shown Figure 61. This page allows you to change the password for the Supervisor account (you cannot change the user name). It also allows you to change the user name and the password for both the Technician and the Limited user accounts. Figure 61. Changing the password of the Configuration Interface Supervisor User Account The supervisor account provides full access to the IPR. You should, therefore, change the password for this account. To change the password, type the new password you want to use in the Enter supervisor password textbox, and then retype it in the Confirm password textbox. After changing the password, make sure you save the configuration by clicking on the Save button, and then restart the IPR by clicking the Restart button; otherwise the new password will not be saved (see Saving Configuration Settings on page 34). Note Only supervisors can change the password of the Supervisor account (the user name is factory set to omni and cannot be changed). Under Advanced Settings, supervisors can enable two additional types of accounts: a technician account and a limited user account. Supervisors can also change the user name and password allocated to each of these account types. Each account provides different access privileges to the menus and configuration pages as discussed in the following sections. 102 Advanced Configuration

115 Technician User Account The technician account (IPR100/IPR110Plus) provides limited access to the System Status, Statistics, and Diagnostics menus. The settings under Advanced Settings are as follows: Enable technician user allows users to login under the Technician account. The default setting is disabled. Technician user name is the user name for the Technician account. The allowed values consist of text with no punctuation characters, spaces or tabs. The default is tech. Technician password is the password for the Technician account. The allowed values consist of text with no punctuation characters, spaces or tabs. The default is password. Figure 62 shows how to enable and set up the Technician account with the default user name and password. To enable the Technician account, simply select Enable technician user; otherwise the account will be disabled. If you do not want to use the default user name and password, type a user name in the Technician user name box and a password in the Technician password box. Figure 62. Enabling the technician account Make sure you save any changes you make by clicking Save (see Saving Configuration Settings on page 34). After saving the changes, you must restart the IPR device for the changes to take effect by clicking Restart (see Restarting the IPR Device on page 35). Note After making changes to the user name or password of the Technician account, you must save the configuration by clicking the Save button, and then restart the IPR100 by clicking Restart. IPR100/IPR110Plus Product Manual 103

116 Limited User Account The limited account (IPR100/IPR110Plus) provides access to only the System Status and Statistics menus. The settings under Advanced Settings are as follows: Enable limited user allows users to login under the Limited account. The default setting is disabled. Limited user name is the user name for the Limited account. The allowed values consist of text with no punctuation characters, spaces or tabs. The default user name is user. Limited user password is the password for the Limited account. The allowed values consist of text with no punctuation characters, spaces or tabs. The default is password. Figure 63 shows how to enable and set up the Limited account with the default user name and password. To enable the Limited account, simply select Enable limited user; otherwise the account will be disabled. If you do not want to use the default user name and password, type a user name in the Limited user name box and a password in the Limited user password box. Figure 63. Enabling the limited-user account Make sure you save any changes you make by clicking Save (see Saving Configuration Settings on page 34). After saving the changes, you must restart the IPR100 for the changes to take effect by clicking Restart (see Restarting the IPR Device on page 35). Note After making changes to the user name or password of the Limited account, you must save the configuration by clicking the Save button, and then restart the IPR100 by clicking Restart. 104 Advanced Configuration

117 Diagnostics, Statistics, and Upgrading the Firmware This chapter discusses the diagnostics and statistics pages and how to update the firmware in the IPR device, and includes the following sections: Diagnostics Fault Reporting with the Diagnostic Report on page 108 Statistics on page 110 Connections on page 112 Upgrading the Firmware on page 113 Diagnostics Both the IPR100 and the IPR110Plus provide a diagnostics page that you can use to perform basic diagnostics and troubleshooting of the devices. Select Diagnostics in Basic or Advanced modes to view the Diagnostics page. Figure 64 shows the diagnostics page for the IPR110Plus and the IPR100 both provide the same diagnostic tools. Figure 64. Radio Diagnostics page for IPR100 and IPR110Plus The Diagnostics page is used to test the IPR device and to diagnose any problems with the configuration. It includes the following diagnostic tools and buttons: Reset IPR allows you to restart the IPR by clicking the Restart button. IPR100/IPR110Plus Product Manual 105

118 Print Configuration opens a new browser window that displays the existing configuration of the IPR device in a simple table format. You can print the configuration from this window. Diagnostic Report shows diagnostic information that may assist you and Omnitronics Technical Support Engineers in diagnosing and troubleshooting problems with your IPR device. Click Report to open a new Report window. You can save the report to a file on your computer or print the report from this window. Note If you experience a problem with your IPR device, please save the diagnostic report and it to Omnitronics our Technical Support Engineers will analyze the report and provide a solution to your problem (see Fault Reporting with the Diagnostic Report on page 108). Audio Loopback connects the local audio input to the local audio output for the channel; the loopback is done at the digital interface. To enable audio loopback, click the corresponding Enable button. The button will then change to a Disable button. When you are finished testing, click the button again. Local Test Tone transmits a 1000Hz tone at the local audio outputs. To enable the local test tone, click Enable. The button will then change to a Disable button. When you are finished testing, click the button again. Transmit test tone transmits a 1000Hz tone to the remote VoIP device. To enable the test tone, click Enable. The button will then change to a Disable button. When you are finished testing, click the button again. Select sound file selects one of the sound data files stored in the IPR device's memory to either play or send via the network. Play sound (locally) plays the selected sound file to the local device: handset or radio. The PTT is activated automatically while playing the sound file. The DTMF / SELCALL lead-in and lead-out delays are used to control the PTT. Transmit Sound (send to network) sends the selected sound file to the remote device via the VoIP link using the configured Codec. To transmit the sound file, click the Transmit button. DTMF/SELCALL Transmit Sequence specifies a sequence of numbers to send via SELCALL or DTMF. Type the sequence of numbers in the box, and then click the DTMF or SELCALL button. Send DTMF sends the sequence of numbers in the DTMF/SELCALL Transmit Sequence box to the local device as DTMF tones. To send the DTMF tones, click the DTMF button. Send SELCALL sends the sequence of numbers in the DTMF/SELCALL Transmit Sequence box to the local device as a SELCALL sequence. When sending a selcall, the sequence must have the same number of digits as the number of tones configured for selcall. Click the SELCALL button to send the selcall. 106 Diagnostics, Statistics, and Upgrading the Firmware

119 Local Push to Talk turns on the local output. If the IPR device is in radio mode, it will operate the local PTT relay. If the device is in handset mode, it will drive the handset busy output. To turn the output ON, click the Turn ON button. The button will change to a Turn OFF button. When you are finished testing, click the button again to turn the local output off. The following diagnostics items will only be shown if the CTCSS functionality is enabled: CTCSS Transmit Frequency selects a CTCSS frequency to use for sending a test tone. Transmit CTCSS sends the CTCSS tone selected in the CTCSS Transmit Frequency to a local radio or console when you click Enable. The button changes to a Disable button. When you are finished testing, click the button again. The following diagnostics items will only be shown (see Figure 65) when the MDC1200 feature is enabled: Command Type is the 16-bit hexadecimal number identifying the command type. The meaning of this is defined by Motorola and the radio vendor. Unit ID is the 16-bit hexadecimal number identifying the Unit ID. The meaning of this is defined by Motorola and the radio vendor. Send MDC1200 sends the MDC1200 command specified in the Command Type to the IPR device specified in Unit ID. The following diagnostics items will only be shown (see Figure 65) when the Tone Remote feature is enabled: Tone Frequency is the frequency of the tone to transmit and is selected from the drop-down list. Transmit Tone(s) transmits the select tone when you click the Tone button. The following diagnostics items will only be shown (see Figure 65) if the Guard Tone feature is enabled: Transmit Guard Tone transmits the configured guard tone when you click the Enable button. Figure 65. Additional diagnostics for MDC1200, Tone Remote, and Guard Tone IPR100/IPR110Plus Product Manual 107

120 Fault Reporting with the Diagnostic Report If you are experiencing a fault or problems with your IPR device product, it is highly recommended that you send a device diagnostic report, in addition to a detailed description of the fault, to Omnitronics Technical Support for further analysis (see the Technical Support section on page ii of this manual for further details). The following procedure provides step-by-step instructions for generating a diagnostic report for the IPR device. To generate a diagnostic report 1 Using your web browser, log in to the IPR device. For further information about logging in, refer to User Accounts and Logging In on page 29. After logging in to the IPR device, the System Status page loads in your browser. 2 Click Diagnostics. The Diagnostics page is displayed in your browser. Report button Opens the Diagnostic Report window 3 On the Diagnostics page, click Report to open the Diagnostic Report window. Note If your browser uses a pop-up blocker (or in some cases, has the security settings set to the maximum), the diagnostic report may be blocked. In this case, you should disable your browser's pop-up blocker and/or reduce the security settings for your browser. 108 Diagnostics, Statistics, and Upgrading the Firmware

121 The Diagnostic Report provides detailed technical information about your IPR. 4 Click Save. The generated report is saved in HTML format to the hard disk on your computer. Note Not all web browsers and operating systems support the Save feature. You may need to save the page using one of the alternate methods discussed in the side-bar Saving the Diagnostic Report on page Click Close to close the Diagnostic Report window. 6 After saving the diagnostic report, create a new message addressed to support@omnitronics.com.au with a subject of Diagnostic Report, and attach the Diagnostic Report to the . Try to provide as much information as possible to assist Omnitronics support engineers in diagnosing and resolving the problem, including a description of the fault, how it occurs, when it occurs, and its effect. Saving the Diagnostic Report If your browser will not save the diagnostic report when you click Save, you can try the following alternate methods: Right-click on the page and select Save Page As (or similar) from the pop-up menu; or on the browser's File menu, select Save Page As (or similar). In the Save As window, specify the location and file name of the diagnostic report you want to save (report.asp.htm). If you still do not have any success in saving the diagnostic report, you can try the following: Highlight all the text on the web page using your mouse; or Right-click on the page and select Select All from the pop-up menu; or Select Select All from the Edit menu (you can also press Ctrl-A if you are using Microsoft Windows); Then right-click and select Copy (or press Ctrl-C if you are using Windows) to copy the text to the clipboard. You can then open a text editor, such as Notepad, and paste the text into a new document, and then save the document in the default format with an appropriate file name. IPR100/IPR110Plus Product Manual 109

122 Statistics Select Statistics under Diagnostics to display comprehensive statistics about the IPR s operation. The page is the same in both Basic and Advanced modes, and is similar for both IPR devices, as shown in Figure 66. Figure 66. Statistics page for the IPR100 and IPR110Plus Current Status Under Current Status on this page, you can view general information about the status of the IPR device: IP Address is the current IP Address of the IPR device. Ethernet MAC Address shows the unique Media Access Control (MAC) address of the IPR device. System up time is the elapsed time since the IPR device was last reset (displayed as days, hours, minutes & seconds). Free memory is the remaining unused memory (in bytes) in the IPR device. Connected IP Devices is the number of IP devices communicating with this IPR device. This number includes connected IP devices that are not currently transmitting audio. Radio Mode: Push to Talk Output shows the state of the PTT as ON or OFF. Radio Mode: Mute Input shows the state of the Mute (Busy) as ON or OFF. Last Received SELCALL and Last Transmitted SELCALL show the selcall sequence that was last received and transmitted by this IPR device respectively (assuming it is configured for selcall). 110 Diagnostics, Statistics, and Upgrading the Firmware

123 CTCSS Receive Status and CTCSS Transmit Status show the CTCSS tone (in Hertz) that this IPR device is currently receiving and transmitting respectively (assuming it is configured for CTCSS). Note The transmit and receive status for the SELCALL and CTCSS will only appear on this page if the IPR device is configured for SELCALL and CTCSS respectively. Statistics Under Statistics, you can view the various statistics counters and other useful information, which includes the following: RTP receive total packets is the total number of RTP packets received. RTP receive valid packets is the number of VoIP data packets received from the remote device. RTP receive valid bytes is the total number of bytes received via RTP. RTP receive sequence errors is the number of sequence errors received. RTP transmit packets is the number of network (UDP) VoIP packets sent, but does not include other packets such as web server data or SNMP packets. RTP transmit bytes is the total number of data bytes sent, and includes the payload data, but it does not include the overhead due to Ethernet protocol. Current bytes per second is an estimate of the current bandwidth usage for VoIP. This will display a non-zero value only if the IPR device is currently transmitting audio information. Time since valid RTP packet is the time in milliseconds since the last RTP packet was received. RTP Payload 0 is the total number of RTP packets with a payload of zero. RTP Payload 97 is the total number of RTP packets with a payload of 97. RTP Payload 99 is the total number of RTP packets with a payload of 99. RTCP receive total packets is the total number of RTCP packets received. RTCP receive valid packets is the number of valid RTCP packets received from the remote device. RTCP receive valid bytes is the total number of bytes received via RTCP. Time since valid RTCP packet is the time in milliseconds since the last RTCP packet was received. Source Name is the name (address) of other IPR/VoIP devices communicating with this IPR device, such as: IPR110Plus:Group1@ Location is the location or name configured in the remote IPR device, such as IPR110Plus-52A1491-GROUP1. IPR100/IPR110Plus Product Manual 111

124 Firmware Information identifies the firmware, and the version of the firmware, that this IPR device is running. Source IP Address is the source IP address for this audio source, such as Source UDP Port is the UDP Port for this audio source, such as Voice Codec is the codec used by the remote IPR100 to send voice information. Received packets is the number of VoIP data packets received from the remote device. Duplicate packets is the number of packets detected containing exactly the same data (network errors). Misordered packets is the number of packets that have arrived out of order, usually due to network delays. Packets arrived too late is the number of packets that arrived after the point where they should have been played (network errors due to high latency). Current playout delay (ms) is how much audio the IPR device is currently holding in its jitter buffer. Current Busy State is the current state of the Busy/Mute input. Current PTT State is the current state of the remote audio source requested for the local IPR device PTT output. This will appear if the remote site currently has an active busy signal from a connected radio. Connections Select Connections under Diagnostics (IPR100/IPR110Plus) in Advanced mode to display the diagnostic Connections page, as shown in Figure 67. Figure 67. IPR Connections page 112 Diagnostics, Statistics, and Upgrading the Firmware

125 This page shows the active SIP connections and allows you to connect and disconnect connections for diagnostic purposes. Upgrading the Firmware Omnitronics may release new versions of the IPR device firmware from time to time to add additional features or to resolve issues. This page allows you to upgrade the firmware for the IPR device. You can view the current firmware version loaded in the IPR device on the System Status page (see Viewing the System Status on page 37). Note The IPR configuration may return to the factory default settings after the firmware is upgraded, so it is recommended that you back up the configuration first before upgrading the firmware (see Backing up the Configuration to a File on page 43). Select Firmware Upgrade in Basic or Advanced mode to display the Firmware Upgrade page, as shown in Figure 68. This page is not intended for end-users as it is available only to system administrators logged in under the Supervisor account. The page shown here is for the IPR110Plus, however, the page is the same for the IPR100. Figure 68. Upgrading the firmware To upgrade the firmware in the IPR device 1 Click Browse to search for the firmware file on your computer (the firmware file is identified with a.bin.gz extension). Important Do not use decompression software to decompress the.bin.gz file: the IPR device uses the compressed binary image to save space in flash memory. If you decompress the file, it will not load. Once you have selected a firmware file, the full path and filename will appear in the Select file text box. IPR100/IPR110Plus Product Manual 113

126 2 Click Upgrade to commence the firmware upgrade process. Warning! Do not remove power to the device whilst upgrading the firmware, otherwise it may cause damage to the device or corrupt the firmware. While the firmware upgrade is in progress, the page will display a progress indicator to keep you informed of its progress. Once the upgrade process is complete, the page will display a message indicating that the firmware has been successfully verified and loaded into flash memory. 114 Diagnostics, Statistics, and Upgrading the Firmware

127 Important If the device fails to upgrade the firmware, do not remove the power; try repeating steps 1 and 2 again 3 Click Restart to restart the IPR. The IPR will not run the new firmware until it is restarted. Once the IPR restarts, you will need to login again if you want to check the configuration settings or to configure the IPR device. IPR100/IPR110Plus Product Manual 115

128

129 Serial Monitor This section discusses how to use the built-in Serial Monitor via the RS-232 serial connection on the back of the device to perform basic configuration, and includes the following: Serial Monitor Overview Serial Communications Setup on page 118 Using Recovery Mode on page 119 Using the Serial Monitor on page 120 Resetting to Factory Default Settings on page 121 Serial Monitor Overview The Serial Monitor is intended for technicians or Omnitronics Support Engineers to assist in diagnosing and troubleshooting problems. You can also use it to configure the basic network settings of the IPR to establish network connectivity. You can then login to the configuration interface with your web browser to configure the IPR. Note You should not use the Serial Monitor to configure the IPR: you should use the built-in configuration interface instead. Before using the IPR device for the first time, you must configure the basic network settings to suit your particular network environment. The easiest way to do this is to use the Serial Monitor with serial communications software such as TeraTerm this popular software is freely downloadable from the Internet; however, you can use whatever serial communications software you like. Before you can configure the basic network settings, you must set up TeraTerm to communicate with the Serial Monitor (see Serial Communications Setup on page 118). IPR100/IPR110Plus Product Manual 117

130 Serial Communications Setup This section describes how to set up TeraTerm for use with the built-in Serial Monitor. The same steps should apply to other serial software. The Serial Monitor uses the RS- 232 serial port on the back of the device to communicate with serial communications software, such as TeraTerm. The pin assignments of this connector are shown in Figure 69. Figure 69. RS232 serial connections If your computer does not provide any RS232 serial ports, you can use an RS232-to- USB adapter to connect to the IPR device. The port used for the adapter will appear as a virtual COM port in Windows. To connect to the Serial Monitor 1 Connect the serial cable from your computer to the device. 2 Apply power to the device. 3 Run TeraTerm. 4 On the Serial port setup dialog, select the port and then set the values: Baud rate: 19200, Data: 8, Parity: None, Stop: 1 bit, and Flow control: None. 5 Click OK to close the dialog. 6 Press Enter on the keyboard. You should now be connected to the Serial Monitor, and you should see the IPR110PLUS $ command prompt, as shown in the screenshot below. You can now use the Serial Monitor to issue commands to the device, as discussed in the section Using the Serial Monitor on page Serial Monitor

131 Note If the command prompt does not appear when you press the Enter key, it is possible that your IPR has Serial Pass-Through mode (or Serial Channel-Change mode for IPR110Plus only) enabled. In this case, you can enter the Serial Monitor through the back-door by following the procedure in the next section Using Recovery Mode. Using Recovery Mode This section discusses recovery mode and how to use it to recover the IPR device when it is not responding in Serial Monitor mode (i.e. the command prompt does not appear when you press the Enter key). This will happen when Serial Pass-Through mode (or Serial Channel-Change mode for IPR100Plus only) is enabled preventing you from using the Serial Monitor. Using recovery mode, you can enter the Serial Monitor through the back-door and then use it to configure the basic network settings of the IPR device to establish network connectivity. The following procedure shows the steps to recover the IPR device using TeraTerm (you can use some other serial communications program if you prefer). This procedure assumes that you have connected the IPR to the computer via the RS232 serial port (or USB port via a USB to serial adapter). To use IPR recovery mode 1 Remove power to the IPR. 2 Run TeraTerm if it is not already running. 3 In the TeraTerm window, while pressing the Ctrl-C keys at the same time, apply power to the IPR. You should see the IPR start-up messages followed by the command prompt IPR110PLUS $ or IPR100 $ depending on your IPR similar to below. You should now be able to use Serial Monitor to issue commands and configure the basic network settings, as discussed in the next section. IPR100/IPR110Plus Product Manual 119

132 Using the Serial Monitor The Serial Monitor is used to perform basic configuration and diagnostics of the IPR device. You can also set the basic network settings, such as IP address, gateway address, and subnet mask to establish network connectivity with the device. You can also reset the IPR device to factory-default settings (see Resetting to Factory Default Settings on page 121). Using the Serial Monitor, you can issue commands to: Display the current configuration Change the basic network settings Reset to factory-default settings Send a network ping to test the network connectivity Perform diagnostic troubleshooting Before you using the Serial Monitor, you should set up your serial communications software (see Serial Communications Setup on page 118). You can then enter commands at the Serial Monitor command prompt by typing the command name followed by the command argument(s), and ending the command by pressing the Enter key some commands allow you to specify a command argument(s) to provide additional information for the command. The common commands used for basic configuration are listed below. Command aconfig defaults set ipaddress set dhcp ping reset Description Application Configuration command displays the current application configuration settings. Usage: aconfig <Enter> Resets all configuration values back to factor default settings. Usage: defaults <Enter> Sets the IP address. The format of the address is n.n.n.n where (n) can be any number between 0 and 255. Note: this will have no effect if the device is configured to use DHCP to automatically determine its IP address. Usage: set ipaddress <new address><enter> Enables or disabled dhcp mode. In DHCP mode the IP address of the device is automatically allocated by a server. Usage: set dhcp 0<Enter> to disable DHCP mode or set dhcp 1<Enter> to enable DHCP mode. Sends a special echo message to another machine on the network to test communications. Usage: ping <new address><enter> Causes the device to reset. Usage: reset<enter> 120 Serial Monitor

133 To see a complete list of the available commands, enter help at the command prompt, as shown in the following example: IPR110PLUS $ help <Enter> IPR100 $ help <Enter> The Serial Monitor provides many commands in addition to those listed in the table. However, the additional commands are intended only for testing and should not be used for initial configuration or in a live radio network. Note If you set the IPR device on a different IP network or subnet to the computer used to access it, you may not be able to access the configuration interface due to incompatible network settings. Resetting to Factory Default Settings You can use the Serial Monitor to restore the IPR device to its factory-default settings by issuing the defaults command followed by the reset command. Note You might lose network connectivity with the IPR after restoring factory defaults. You can use the Serial Monitor to set the basic network settings to match your network. On revision 3 or later hardware, you can also reset the IPR device to factory default settings using the Reset to Defaults button on the back of the device (see Resetting to Factory Default Settings on page 25). The factory default settings are shown below. Feature Setting Default Device login Login URL User name Login password (casesensitive) omni ipr100 (IPR100) Ipr110+ (IPR110Plus) Local network (LAN) IP address (odd serials) (even serials) Subnet mask (network mask) Gateway address DHCP server Disabled VoIP/RTP Remote IP address (even serials) SIP RTP receive port (UDP) 5004 RTP transmit port (UDP) 5004 Session Initiation Protocol (SIP) (odd serials) Disabled IPR100/IPR110Plus Product Manual 121

134

135 Application Examples This chapter provides several examples of connecting radios to IPR devices in a network, and includes the following sections: Remote Radio Access Using Static IP Addressing (VPN) Remote Radio Access Using Dynamic IP Addressing on page 125 Line Replacement Using VOX on page 127 Communicating with DX-Altus Radio Dispatch System on page 130 Radio Dispatch Using SIP Connections on page 131 Connecting Radios via ADSL and the Internet on page 133 Connecting Radios using Multicasting on page 141 Connecting Multiple IPR Devices Using Conference Mode on page 143 IPR110Plus Radio to SIP/PSTN Gateway on page 158 Omnitronics 960 Console to Radio with In-band Keying on page 160 Omnitronics Dispatch Console to P25 Basestation using MDC1200 on page 162 Remote Radio Access Using Static IP Addressing (VPN) The remote radio access allows an operator to control and monitor a remote transceiver across an IP network. Using VoIP technology, the audio for transmit and receive along with the PTT and Busy/COS signals, are transported over the link transparently. SELCALL and DTMF are also transported reliably, regardless of the level of compression. Multiple Omnitronics handsets and consoles can be multi-dropped (at the operator site) to allow shared access to the transceiver by a number of operators. Figure 70 shows two IPR100 devcies connected over a VPN to control a remote radio using an Omnitronics Console or Handset. In this example, the devices use static IP addresses. Figure 70. Remote radio access using static addressing over a VPN IPR100/IPR110Plus Product Manual 123

136 The IPR device should be configured to match the SELCALL or DTMF tone signaling scheme so that tone signaling is transmitted as data. The diagram above shows a single pair of IPR100s connected over the IP network to control a single radio using an Omnitronics Console or Handset. In this example, we will assume the network is a simple LAN using static Internet Addresses. If either or both IPR100's were replaced with an IPR110Plus exactly the same configuration values could still be used. Table 6 and Table 7 show the configuration values used at each site (any configuration value not listed is left at the factory default setting). Table 6. Configuration of IPR100 at operator site using static IP addressing Page Setting Value Description Network (Basic) Radio/Hands et (Basic) VoIP/RTP (Basic) Location Name IPR100-52A1212 Default Automatically obtain IP address Deselected DHCP server not availble. All addresses must be manually configured. Static IP Address Both IPR100 devices must use the same subnet (i.e x) Netmask Gateway Address Device Type Volume (output level) Expected audio input level Handset/Console TX Gain 0dB Handset -10dBm Remote IP Address IP address of the remote IPR100 RTP Receive Port 5004 RTP Transmit Port Application Examples

137 Table 7. Configuration of IPR100 at radio site using static IP addressing Page Setting Value Description Network (Basic) Radio/Hands et (Basic) VoIP/RTP (Basic) Location Name Automatically obtain IP address IPR100-52A1213 Deselected Default DHCP server not availble. All addresses must be manually configured. Static IP Address Both IPR100 devices must use the same subnet ( x) Netmask Gateway Address Device Type Volume (output level) Expected audio input level Radio TX Gain 0dB -10dBm Remote IP Address IP address of the remote IPR100 RTP Receive Port 5004 RTP Transmit Port 5004 Remote Radio Access Using Dynamic IP Addressing Figure 71 shows an IPR100 and IPR100 connected over an IP network to control a remote radio using an Omnitronics Console or Handset. Figure 71. Remote radio access using dynamic addressing over an IP network The remote radio access allows an operator to control and monitor a remote transceiver across an IP network. Using VoIP technology, the audio for transmit and receive along with the PTT and Busy/COS signals, are transported over the link transparently. SELCALL and DTMF are also transported reliably, regardless of the level of compression. IPR100/IPR110Plus Product Manual 125

138 Multiple Omnitronics handsets and consoles can be multi-dropped (at the operator site) to allow shared access to the transceiver by a number of operators. In this example, we will assume the network is an IP network, such as the Internet, using dynamic IP addresses. This example uses exactly the same hardware as used in the previous example; however, in this case we have a network with a DHCP server available on it. We can, therefore, use dynamic addressing and device names to connect the two IPR100 devices if either or both IPR100 devices were to be replaced with an IPR110Plus, exactly the same configuration values could still be used. Table 8 and Table 9 show the configuration values used at each site. Any configuration value not listed is left at the factory default setting. Table 8. Configuration of IPR100 at operator site using dynamic IP addressing Page Setting Value Description Network (Basic) Radio/Handset (Basic) Location Name IPR100-52A1212 Default Automatically obtain IP address Static IP Address Selected DHCP server is availble: all addresses automatically allocated by DHCP server Value ignored Netmask Value ignored Gateway Address Device Type Volume (output level) Value ignored Handset/Console TX Gain 0dB Expected audio input level Handset -10dBm VoIP/RTP (Basic) Remote IP Address IPR100-52A1213.LOCAL Name of the remote IPR100 RTP Receive Port 5004 RTP Transmit Port Application Examples

139 Table 9. Configuration of IPR100 at radio site using dynamic IP addressing Page Setting Value Description Network (Basic) Location Name IPR100-52A1213 Default Radio/Handset (Basic) VoIP/RTP (Basic) Automatically obtain IP address Static IP Address Selected DHCP server is availble: all addresses automatically allocated by DHCP server Value ignored Netmask Value ignored Gateway Address Device Type Volume (output level) Expected audio input level Remote IP Address RTP Receive Port RTP Transmit Port Value ignored Radio TX Gain 0dB -10dBm IPR100-52A1212.LOCAL Set this value for desired output level from radio Name of the remote IPR100 The IPR100 should be configured to match the SELCALL or DTMF tone signaling scheme so that tone signaling is transmitted as data. Line Replacement Using VOX The Line Replacement mode allows two audio devices, such as 4-wire audio bearers, to be connected back-to-back over an IP link, as shown in Figure 72. Figure 72. Line replacement using VOX IPR100/IPR110Plus Product Manual 127

140 As the communications equipment does not provide a COS output, a VOX function is implemented in the IPR device using the built-in VAD feature. When a voice signal is detected on the radio port, the COS signal is transmitted to the remote IPR device. This will also enable the transmission of voice packets over the IP network. Full duplex operation is supported. This example links 4-wire audio bearers via an IP Link. As the communication equipment does not provide a COS output, we need to implement the VOX function in the IPR device. Table 10 and Table 11 show the configuration values used at each site (any configuration value not listed is left at the factory default setting). Table 10. Configuration of IPR100 at site A using static IP addressing Page Setting Value Description Network (Basic) Radio/Handset (Basic) Radio/Handset (Advanced) VoIP/RTP (Basic) Location Name Automatically obtain IP address Static IP Address IPR100-52A1213 Deselected Netmask Gateway Address Default DHCP server not used. Must use static IP addresses Both IPR100 devices must use the same subnet ( x) Device Type Radio Input is via 4-wire E&M port Volume (output level) Expected audio input level Voice Activity Detection VAD Hold/Hang Time (milliseconds) Remote IP Address TX Gain 0dB -10dBm Selected RTP Receive Port 5004 RTP Transmit Port Set this value to desired volumel from radio. Set this value to nominal output level from radio. Enables voice-activity detection for triggering VOX (default) 1000 Setting this value to 1000 ensures VOX does not turn off too quickly cutting off the audio (default) IP address of the remote IPR Application Examples

141 Table 11. Configuration of IPR100 at site B site using static IP addressing Page Setting Value Description Network (Basic) Location Name Radio/Handset (Basic) Radio/Handset (Advanced) VoIP/RTP (Basic) Automatically obtain IP address Static IP Address IPR100-52A1214 Deselected Netmask Gateway Address Default DHCP server not used. Must use static IP addresses. Device Type Radio Input is via 4-wire E&M port Volume (output level) Expected audio input level Voice Activity Detection VAD Hold/Hang Time (milliseconds) Remote IP Address RTP Receive Port RTP Transmit Port TX Gain 0dB -10dBm Selected Set this value to desired volumel from radio. Set this value to nominal output level from radio. Enables voice-activity detection for triggering VOX (default) Setting this value to 1000 ensures VOX does not turn off too quickly cutting off the audio (default) IP address of the remote IPR IPR100/IPR110Plus Product Manual 129

142 Communicating with DX-Altus Radio Dispatch System The IPR device can be used to connect remote transceivers to an Omnitronics DX- Altus Radio Dispatch System, as depicted in Figure 73. The interface provides audio, SELCALL and DTMF signaling information directly to the dispatch system. Figure 73. Communicating with a DX-Altus Radio Dispatch System Each IPE in the DX-Altus Server sub-rack can support four VoIP channels, which can come from an IPR100, IPR110Plus, or IPR400 devices. In this example, an IPR device is connected to the fourth VoIP channel on the IPE. The IPE uses four pairs of port numbers for VoIP connections starting from 5004/5005 for channel 1 to 5010/5011 for channel 4. Note The odd-numbered ports are used by RTCP and should not be used when configuring RTP. Table 12 list the configuration values used at the site (any configuration value not listed is left at the factory default setting). 130 Application Examples

143 Table 12. Configuration of IPR100 at radio site using static IP addressing Page Setting Value Description Network (Basic) Location Name Radio/Handset (Basic) VoIP/RTP (Basic) Automatically obtain IP address Static IP Address IPR100-52A1999 Deselected Netmask Gateway Address Default DHCP server not availble. All addresses must be manually configured. Device Type Radio Input is via 4-wire E&M port Volume (output level) Expected audio input level Remote IP Address RTP Receive Port RTP Transmit Port TX Gain 0dB -10dBm Set this value for desired volume from radio Set this value to nominal output level from radio This is the IP address of the IPE 5010 This is the port for the 4th channel on the IPE 5010 This is the port for the 4th channel on the IPE Radio Dispatch Using SIP Connections The 960SIP12 can connect to a maximum of twelve IPR devices, as depicted in Figure 74, with each IPR device providing one channel. The 960SIP12 uses SIP to make the connection, and the network configuration is performed in the IPR120. Figure 74. Radio dispatch using SIP connections from 960SIP12 IPR100/IPR110Plus Product Manual 131

144 The IPR device can accept a total of 12 simultaneous SIP connections. An IPR120 will typically have one of the available twelve SIP channels set aside for each IPR device in the network, but this will depend on the network requirements. You will need to configure the IPR device to enable incoming SIP connections, and to configure the SIP user name. Table 13 lists the configuration of the IPR device to use static IP addressing (i.e. no DHCP server available) in a 960SIP system. Table 13. Configuration of IPR100 using static IP for SIP-based dispatch system Page Setting Value Description Network (Basic) Radio/Handset (Basic) VoIP/RTP (Basic) SIP (Advanced) Location Name Automatical ly obtain IP address Static IP Address IPR100-52A1213 Deselected Netmask Gateway Address Default No DHCP server: must manually conffigure all addresses. Device Type Radio Input is via 4-wire E&M port Volume (output level) Expected audio input level Remote IP Address RTP Receive Port RTP Transmit Port TX Gain 0dB -10dBm Set this value to desired volumel from radio Set this value to nominal output level from radio IP address of the remote IPR SIP Enable Sselected Enables the SIP mode in the IPR100 firmware SIP UDP Port 5060 Default setting must match the configuration in the IPR120. User Name ipr Default setting must match the configuration in the IPR Application Examples

145 Connecting Radios via ADSL and the Internet Configuring networks is a complex issue, and there are many different ways that you can set up a network. The example presented in this section is just one way that you can use to connect two IPR100 devices on a network. Figure 75 shows the network configuration for this example, which consists of two sites A and B. Each site contains an IPR100 device connected to a router in its own intranet; and each IPR100 device has one radio connected to it. Figure 75. Connecting IPR devices over the internet In this example, the ADSL routers at the radio sites use Network Address Translation (NAT) and Port Forwarding to route data packets from an external (class A) IP address to an internal or local (class C) IP address (see Network Address Translation (NAT) on page 169). The external IP address of the router is mapped to two internal IP addresses: the IP address of the intranet gateway and the local IP address of the IPR100 device on the network. Table 14 lists the addresses used in this application. Note If you change the IP address and subnet mask of the IPR100, you might not be able to access the configuration interface from your computer. If this occurs, see Chapter 7, Serial Monitor for information about how to change the IP address via the serial port of the IPR100. Table 14. IP Address details of routers and IPR100 devices Site A Site B IPR100: IPR100: Router external IP Address: Router external IP Address: Local LAN Gateway Address: Local LAN Gateway Address: IPR100/IPR110Plus Product Manual 133

146 Configuring the Network Site A comprises a small network of computers, operator work stations, and an IPR100 so the router is configured to use Network Address Translation and Port Forwarding to connect the IPR100 and the computers to the Internet. Site B comprises only an IPR100, so the router is configured to use the demilitarized zone (DMZ) to connect the IPR100: in this configuration, the IPR100 is completely accessible from the Internet. Router and IPR100 Configuration for Site A The router at site A is configured to use port forwarding, which simply tells the router to which device (computer or IPR100) on the local area network to send the data. This allows the IPR100 at site B to reach ports on the IPR100 connected to the internal IP address (inside the LAN). The IPR100 uses the default port numbers of 5004 for Real Time Protocol (RTP) and port 5005 for Real Time Control Protocol (RTCP). For an RTP channel, two ports are required: the first is for the actual RTP voice data, and the other is used for RTCP control and status information. Hence, the router at site A will be configured to forward all UDP messages on ports 5004 and 5005 to the IP local address of the IPR100 device on the LAN. Table 15 lists the port forwarding required. Table 15. Port forwarding configuration for router at site A Protocol Remote Port External Address Local Port Local Address UDP UDP TCP The web server in the IPR100 uses TCP and port 80, the standard port for web servers. To make it accessible via the router, we need to set up port forwarding. As port 80 is commonly used for web servers, it is likely that this port could get scanned or probed by hackers attempting to locate devices to attack. It is a good idea to use some other port to forward the web server. The last configuration item (TCP), forwards TCP port 8080 (remote) to port 80 (local) and makes it possible to access the web server configuration of the IPR100 from the Internet using the URL This is optional, but may be desirable for remote sites. Table 16 lists the configuration parameters for the IPR100 at site A. This configures the IPR100 to exist on the LAN at address Once the router at site A is configured (see your router manual for details), the IPR100 at site A needs to be configured with these settings. 134 Application Examples

147 These network settings configure the IPR100 on the LAN network at IP address , however, you can use the configuration interface to change the network settings of the IPR100 to suit your environment. The combination of the network mask and gateway means that any IP address that starts with x is a local address and will be sent via a local LAN. Furthermore, any IP address that starts with something other than x is an external address. Table 16. Configuration of IPR100 at site A Page Setting Value Description Network (Basic) Location Name IPR100-52A1213 Default Radio/Handset (Basic) VoIP/RTP (Basic) Automatically obtain IP address Static IP Address Deselected Netmask Gateway Address Device Type Volume (output level) Expected audio input level Remote IP Address RTP Receive Port RTP Transmit Port Handset/Console TX Gain 0dB Handset/Console -10dBm DHCP server not availble. All addresses must be manually configured IP address of the remote IPR In this case, the IPR100 will direct the message to its gateway address (i.e. the ADSL router at ). The router will then forward the message to the Internet. However, because the router is using Network Address Translation, it will change the messages so that it looks like it has come from address Router and IPR100 Configuration for Site B The router at site B is configured to forward all messages to the IPR100. This is sometimes described as a DMZ Host or Demilitarized Zone Host in the ADSL router documentation. Table 17 shows the IP address translation for the router at site B. IPR100/IPR110Plus Product Manual 135

148 Table 17. IP network address translation for router at site B External Address Local Router Address Local DMZ Host Address This setup is still using Network Address Translation (NAT), so all messages to and from the IPR100 will appear to be going to the router s external IP address. In this configuration, all ports are automatically forwarded, so it will be possible to access the configuration web server over the Internet. Table 18 lists the configuration parameters for the IPR100 at site B. This configures the IPR100 to exist on the LAN at address Once the router at site B is configured (see your router manual for details), the IPR100 at site B needs to be configured with these settings. Table 18. Configuration of IPR100 at site B Page Setting Value Description Network (Basic) Location Name IPR100-52A1214 Default Automatically obtain IP address Deselected Static IP Address DHCP server not availble. All addresses must be manually configured. Netmask Gateway Address Radio/Handset (Basic) VoIP/RTP (Basic) Device Type Volume (output level) Expected audio input level Remote IP Address RTP Receive Port 5004 RTP Transmit Port Handset/Console TX Gain 0dB Handset/Console -10dBm IP address of the remote IPR The above network settings configure the IPR100 for IP address As with site A, any IP address that does not start with the local LAN address of x will be sent to the gateway address of (i.e. the site B router). 136 Application Examples

149 Connecting via ADSL and the Internet with Dynamic DNS In the previous example, we used static IP addressing for routing over the internet; however, this will only work if the router at each site is assigned a fixed public IP address from the respective ISP. In most cases, internet service providers assign dynamic public IP addresses to subscribers rather than fixed or static IP addresses. This means that the public IP address of the routers will change from time to time as the router is restarted or the ADSL connection is reconnected. This example shows you how to configure the IPR100 to use dynamic DNS to maintain communication even if the router s public IP address changes. With dynamic DNS, you configure the IPR100 devices to refer to each other by their fully qualified domain names this is assigned in the VoIP Remote IP address setting and enable Dynamic DNS with proper configuration on both. Use the information provided in Table 19 and Table 20 as a guide. In the event of a change in public IP address in either device, VoIP communication should be re-established automatically. Table 19. Configuration of IPR100 using ADSL and Dynamic DNS for site A Page Setting Value Description Network (Advanced) Location Name Automatically obtain IP address Static IP Address IPR100-52A1213 Deselected Netmask Gateway Address Domain Name System (DNS) Server 1 Domain Name System (DNS) Server 2 Disables DHCP The is the local LAN address. To the outside world the IPR100 appears at address Specifies the IP address of one of your ISP DNS servers Specifies the IP address of another of your ISP DNS servers or leave at Enable DNS Selected Enables the Dynamic DNS Client IPR100/IPR110Plus Product Manual 137

150 Table 19 (continued) Radio/Handset (Basic) VoIP/RTP (Basic) Public IP Service 1 Public IP Service 2 Device Domain Name Dynamic DNS Host Domain Name Dynamic DNS Host Port Dynamic DNS Host Authentication User Name Dynamic DNS Host Authentication Password Device Type Volume (output level) Expected audio input level Remote IP Address RTP Receive Port RTP Transmit Port ndns.com:8245/ smyip.com/auto mation/n asp homebaseklm.net members.dyndns.com Specifies a URL to a web service that can confirm the public IP of the requester Specifies a URL to a secondary web service that can confirm the public IP of the requester in case Service 1 fails Specifies previously registered fully-qualified domain name for Site A Specifies the domain name of your dynamic DNS update authority that manages the Device Domain Name 80 Make adjustments if port 80 is blocked by a local firewall and the service listens on another port dyndnsuser Specifies the required user name required by the dynamic DNS host service for authentication purposes ****** Specifies the password required by the dynamic DNS host service for authentication purposes Handset/Console TX Gain 0dB Handset/Console -10dBm zone-xyz.net: Specifies the chosen domain name of Site B 138 Application Examples

151 Table 20. Configuration of IPR100 using ADSL and Dynamic DNS for site B Page Setting Value Description Network (Advanced) Location Name Automatically obtain IP address Static IP Address IPR100-52A1214 Deselected Netmask Gateway Address Domain Name System (DNS) Server 1 Domain Name System (DNS) Server 2 Disables DHCP The is the local LAN address. To the outside world the IPR100 appears at address Specifies the IP address of one of your ISP DNS servers Specifies the IP address of another of your ISP DNS servers or leave at Enable DNS Selected Enables the Dynamic DNS Client Public IP Service 1 Public IP Service 2 Device Domain Name com:8245/ asp zone-xyz.net Specifies a URL to a web service that can confirm the public IP of the requester Specifies a URL to a secondary web service that can confirm the public IP of the requester in case Service 1 fails Specifies a previously registered fully-qualified domain name for Site B Dynamic DNS Host Domain Name members.dyndns.com Specifies the domain name of your dynamic DNS update authority that manges the Device Domain Name IPR100/IPR110Plus Product Manual 139

152 Table 20 (continued) Page Setting Value Description Radio/Hands et (Basic) VoIP/RTP (Baisc) Dynamic DNS Host Port Dynamic DNS Host Authenticatio n User Name Dynamic DNS Host Authenticatio n Password Device Type Volume (output level) Expected audio input level Remote IP Address RTP Receive Port RTP Transmit Port 80 Make adjustments if port 80 is blocked by a local firewall and the service listens on another port dyndnsuser Specifies the required user name required by the dynamic DNS host service for authentication purposes ****** Specifies the password required by the dynamic DNS host service for authentication purposes Handset/Console TX Gain 0dB Handset/Console - 10dBm homebase-klm.net Specifies the chosen domain name of Site A 140 Application Examples

153 Connecting Radios using Multicasting Multicast Addressing is a protocol used for efficiently sending data to multiple IPR devices at the same time over TCP/IP networks (see Multicast Addressing on page 167 for further details). The IPR device can be used to connect multiple radio and consoles together into a multicast group: this allows multiple devices at multiple sites to be linked together. When any radio or console in the group receives audio, it is transmitted to the other devices in the group. Multicasting, as depicted in Figure 76, is an IP addressing scheme that provides an efficient one-to-many transmission: a single data packet is routed to multiple destinations; however, the network will only duplicate the packet if it needs to go to two different locations. Figure 76. Multiple connections using multicasting To use multicasting, all the routers in the network must support multicasting and it must be enabled. If your network does not support multicasting, the conference mode configurations described in the following sections provide an alternative. Note Many routers on the Internet and some ADSL/DSL modems do not support multicasting. If you are attempting to use multicasting via a WAN or the Internet, all network routers between the IPR devices must support multicasting (multicast addresses may not work over the Internet). Audio received at any IPR device in the multicast group is transmitted once and received by all the other IPR devices in the group effectively all the radios/consoles are linked together. If any IPR device fails, only that IPR device is affected. All the devices are configured to use a single multicast address as the remote address for the VoIP link. To link two or more IPR devices via multicasting, you need to configure the VoIP Remote Address to be a multicast address. The multicast address that you use will depend on the configuration of your network. Table 21 to Table 24 list the configuration for each IPR100 device. IPR100/IPR110Plus Product Manual 141

154 Table 21. Configuration of IPR100 (A) Page Setting Value Description Network (Basic) VoIP/RTP (Baisc) Location Name Automatically obtain IP address IPR100-A Selected Enables DHCP server to allocate IP address, netmask, and gateway address. Remote IP Address Specifies the address of the multicast group: all IPR100 devices with this address will be part of the multicast group. RTP Receive Port 5004 RTP Transmit Port 5004 Table 22. Configuration of IPR100 (B) Page Setting Value Description Network (Basic) VoIP/RTP (Baisc) Location Name Automatically obtain IP address IPR100-B Selected Enables DHCP server to allocate IP address, netmask, and gateway address. Remote IP Address Specifies the address of the multicast group: all IPR100 devices with this address will be part of the multicast group. RTP Receive Port 5004 RTP Transmit Port 5004 Table 23. Configuration of IPR100 (C) Page Setting Value Description Network (Basic) VoIP/RTP (Baisc) Location Name Automatically obtain IP address Remote IP Address IPR100-C Selected RTP Receive Port 5004 RTP Transmit Port 5004 Enables DHCP server to allocate IP address, netmask, and gateway address Specifies the address of the multicast group: all IPR100 devices with this address will be part of the multicast group. Table 24. Configuration of IPR100 (D) Page Setting Value Description Network Location Name IPR100-D (Basic) Automatically obtain IP address Selected Enables DHCP server to allocate IP address, netmask, and gateway address. VoIP/RTP (Baisc) Remote IP Address Specifies the address of the multicast group: all IPR100 devices with this address will be part of the multicast group. RTP Receive Port 5004 RTP Transmit Port Application Examples

155 Connecting Multiple IPR Devices Using Conference Mode The IPR device provides a method of forwarding audio between multiple IPR devices called conference mode. Using conference mode, multiple IPR devices can interconnect over an IP network. Several different configurations of conference mode are available as discussed in the following sections: Peer-to-Peer (No Central Server) Bridge Server Dispatch Server Multicast Gateway Peer-to-Peer (No Central Server) The peer-to-peer (no central server) conference mode allows multiple IPR devices to communicate directly with each other in a conference. This type of conference is a simulated multicast mode: each IPR device in the conference is configured to send audio to all the other IPR devices, as depicted in Figure 77. Figure 77. Multiple connections using peer-to-peer conference mode Operation Audio received at any IPR device in the conference group is transmitted to all other IPR devices in the group. Effectively all the radios/consoles are linked together. Failure If any one IPR device fails, only that IPR device is affected. Configuration This type of conference mode is the most difficult to configure since all IPR devices in the conference group need to be configured with the addresses of all the other IPR devices in the group. IPR100/IPR110Plus Product Manual 143

156 Using conference mode, we can connect multiple devices together on networks that do not support multicasting. This is more complicated to configure and uses more bandwidth as each IPR100 device needs to send its audio packets multiple times. Table 25 to Table 29 list the configuration for each IPR100 device. Table 25. Configuration of IPR100 (A) using Peer-to-Peer conference mode Page Setting Value Description Network (Basic) VoIP/RTP (Basic) VoIP/RTP (Advanced) Location Name Automatically obtain IP address Remote IP Address RTP Receive Port RTP Transmit Port Enable Conferencing Conference Mode IPR100-A Selected IPR100-B.LOCAL Selected Peer to Peer: No Central Server Enables DHCP server to allocate IP address, netmask, and gateway. Specifies the IPR100 to send audio to: the others receive audio via the conference. Enables selected conference mode All IPR100 devices communicate directly: no single point of failure. Enable Selected Enables first destination for conference mode IP Address IPR100-C.LOCAL Address of first destination for conference mode Transmit Port 5004 Port used to transmit audio to first destination of conference mode Enable Selected Enables second destination for conference mode IP Address IPR100-D.LOCAL Address of second destination for conference mode Transmit Port 5004 Port used to transmit audio to second destination of conference mode Enable Selected Enables third destination for conference mode IP Address IPR100-E.LOCAL Address of third destination for conference mode Transmit Port 5004 Port used to transmit audio to third destination of conference mode 144 Application Examples

157 Table 26. Configuration of IPR100 (B) using Peer-to-Peer conference mode Page Setting Value Description Network (Basic) VoIP/RTP (Basic) VoIP/RTP (Advanced) Location Name Automatically obtain IP address Remote IP Address RTP Receive Port RTP Transmit Port Enable Conferencing Conference Mode IPR100-B Selected IPR100-A.LOCAL Selected Peer to Peer: No Central Server Enables DHCP server to allocate IP address, netmask, and gateway address. Specifies the IPR100 to send audio to: the others receive audio via the conference. Enables the selected conference mode All IPR100 devices communicate directly: no single point of failure. Enable Selected Enables first destination for conference mode IP Address IPR100-C.LOCAL Address of first destination for conference mode Transmit Port 5004 Port used to transmit audio to first destination of conference mode Enable Selected Enables second destination for conference mode IP Address IPR100-D.LOCAL Address of second destination for conference mode Transmit Port 5004 Port used to transmit audio to second destination of conference mode Enable Selected Enables third destination for conference mode IP Address IPR100-E.LOCAL Address of third destination for conference mode Transmit Port 5004 Port used to transmit audio to third destination of conference mode IPR100/IPR110Plus Product Manual 145

158 Table 27. Configuration of IPR100 (C) using Peer-to-Peer conference mode Page Setting Value Description Network (Basic) VoIP/RTP (Basic) VoIP/RTP (Advanced) Location Name Automatically obtain IP address Remote IP Address RTP Receive Port RTP Transmit Port Enable Conferencing Conference Mode IPR100-C Selected IPR100-A.LOCAL Selected Peer to Peer: No Central Server Enables DHCP server to allocate IP address, netmask, and gateway address. Specifies the IPR100 to send audio to: the others receive audio via the conference. Enables the selected conference mode All IPR100 devices communicate directly: no single point of failure. Enable Selected Enables first destination for conference mode IP Address IPR100-B.LOCAL Address of first destination for conference mode Transmit Port 5004 Port used to transmit audio to first destination of conference mode Enable Selected Enables second destination for conference mode IP Address IPR100-D.LOCAL Address of second destination for conference mode Transmit Port 5004 Port used to transmit audio to second destination of conference mode Enable Selected Enables third destination for conference mode IP Address IPR100-E.LOCAL Address of third destination for conference mode Transmit Port 5004 Port used to transmit audio to third destination of conference mode 146 Application Examples

159 Table 28. Configuration of IPR100 (D) using Peer-to-Peer conference mode Page Setting Value Description Network (Basic) VoIP/RTP (Basic) VoIP/RTP (Advanced) Location Name Automatically obtain IP address Remote IP Address RTP Receive Port RTP Transmit Port Enable Conferencing Conference Mode IPR100-D Selected IPR100-A.LOCAL Selected Peer to Peer: No Central Server Enables DHCP server to allocate IP address, netmask, and gateway address. Specifies the IPR100 to send audio to: the others receive audio via the conference. Enables the selected conference mode All IPR100 devices communicate directly: no single point of failure. Enable Selected Enables first destination for conference mode IP Address IPR100-B.LOCAL Address of first destination for conference mode Transmit Port 5004 Port used to transmit audio to first destination of conference mode Enable Selected Enables second destination for conference mode IP Address IPR100-C.LOCAL Address of second destination for conference mode Transmit Port 5004 Port used to transmit audio to second destination of conference mode Enable Selected Enables third destination for conference mode IP Address IPR100-E.LOCAL Address of third destination for conference mode Transmit Port 5004 Port used to transmit audio to third destination of conference mode IPR100/IPR110Plus Product Manual 147

160 Table 29. Configuration of IPR100 (E) using Peer-to-Peer conference mode Page Setting Value Description Network (Basic) VoIP/RTP (Basic) VoIP/RTP (Advanced) Location Name Automatically obtain IP address Remote IP Address RTP Receive Port RTP Transmit Port Enable Conferencing Conference Mode IPR100-E Selected IPR100-A.LOCAL Selected Peer to Peer: No Central Server Enables DHCP server to allocate IP address, netmask, and gateway address. Specifies the IPR100 to send audio to: the others receive audio via the conference. Enables the selected conference mode All IPR100 devices communicate directly: no single point of failure. Enable Selected Enables first destination for conference mode IP Address IPR100-B.LOCAL Address of first destination for conference mode Transmit Port 5004 Port used to transmit audio to first destination of conference mode Enable Selected Enables second destination for conference mode IP Address IPR100-C.LOCAL Address of second destination for conference mode Transmit Port 5004 Port used to transmit audio to second destination of conference mode Enable Selected Enables third destination for conference mode IP Address IPR100-D.LOCAL Address of third destination for conference mode Transmit Port 5004 Port used to transmit audio to third destination of conference mode 148 Application Examples

161 Bridge Server The Bridge Server conference mode provides the same functionality as the Peer-to- Peer conference mode in a different configuration. In this approach, depicted in Figure 78, all IPR devices are connected to a single IPR device acting as a bridge server ; any audio sent to the bridge server will be relayed to all connected Omnitronics IP devices. Figure 78. Multiple connections using bridging server (linking) conference mode Operation Audio received at any IPR device in the conference group is output on all other IPR devices in the group. Effectively all the radios/consoles are linked together. The server performs linking through VoIP. Failure If the server fails, all communications within the group will also fail. Configuration This mode is easier to configure than Peer-to-Peer as you only need to configure the IPR device acting as the server in the conference. All client IPR devices can be configured with a single destination (i.e. the server IP address). Table 30 lists the configuration of the central server site IPR100 (E). IPR100/IPR110Plus Product Manual 149

162 Table 30. Configuration of IPR100 (E) using Bridge Server conference mode Page Setting Value Description Network (Basic) VoIP/RTP (Basic) VoIP/RTP (Advanced) Location Name Automatically obtain IP address Remote IP Address RTP Receive Port RTP Transmit Port Enable Conferencing Conference Mode IPR100-E Selected IPR100-B.LOCAL Selected Bridge Server Enables DHCP server to allocate IP address, netmask, and gateway address. Specifies the IPR100 to send audio to: the others receive audio via the conference. Enables the selected conference mode All IPR100 devices communicate directly: no single point of failure. Enable Selected Enables first destination for conference mode IP Address IPR100-C.LOCAL Address of first destination for conference mode Transmit Port 5004 Port used to transmit audio to first destination of conference mode Enable Selected Enables second destination for conference mode IP Address IPR100-D.LOCAL Address of second destination for conference mode Transmit Port 5004 Port used to transmit audio to second destination of conference mode Enable Selected Enables third destination for conference mode IP Address IPR100-A.LOCAL Address of third destination for conference mode Transmit Port 5004 Port used to transmit audio to third destination of conference mode The configuration of all the client radio sites is simpler than the central server site as conference mode does not need to be enabled. Table 31 to Table 34 list the configuration of each client IPR100 (A to D). 150 Application Examples

163 Table 31. Configuration of IPR100 (A) using Dispatch Server conference mode Page Setting Value Description Network (Basic) Location Name IPR100-A Automatically obtain IP address Selected Enables DHCP server to allocate IP address, netmask, and gateway address. VoIP/RTP (Basic) Remote IP Address IPR100-E.LOCAL Specifies the IPR100 to send audio to: the others receive audio via the conference. RTP Receive Port 5004 RTP Transmit Port 5004 Table 32. Configuration of IPR100 (B) using Dispatch Server conference mode Page Setting Value Description Network (Basic) Location Name IPR100-B Automatically obtain IP address Selected Enables DHCP server to allocate IP address, netmask, and gateway address. VoIP/RTP (Basic) Remote IP Address IPR100-E.LOCAL Specifies the IPR100 to send audio to: the others receive audio via the conference. RTP Receive Port 5004 RTP Transmit Port 5004 Table 33. Configuration of IPR100 (C) using Dispatch Server conference mode Page Setting Value Description Network Location Name IPR100-C (Basic) Automatically obtain IP address Selected Enables DHCP server to allocate IP address, netmask, and gateway address. VoIP/RTP (Basic) Remote IP Address IPR100-E.LOCAL Specifies the IPR100 to send audio to: the others receive audio via the conference. RTP Receive Port 5004 RTP Transmit Port 5004 IPR100/IPR110Plus Product Manual 151

164 Table 34. Configuration of IPR100 (D) using Dispatch Server conference mode Page Setting Value Description Network (Basic) VoIP/RTP (Basic) Location Name Automatically obtain IP address IPR100-D Selected Enables DHCP server to allocate IP address, netmask, and gateway address. Remote IP Address IPR100-E.LOCAL Specifies the IPR100 to send audio to: the others receive audio via the conference. RTP Receive Port 5004 RTP Transmit Port 5004 Dispatch Server The Dispatch Server conference mode depicted in Figure 79 is similar to the Bridging Server configuration with the addition of an Omnitronics 960CSD console connected to the server. Figure 79. Multiple connections using dispatch server (no linking) conference mode This application depicts four IPR devices with radios (not shown) connected to a single operator console. The operator console hears the audio from all the radios. If the operator transmits, all the radios will hear the operator. However, the radios are not linked and therefore will not hear audio from any of the other sites. Only the central server site, the IPR100 (E), needs to have conference mode enabled. Operation Audio received at any client IPR device in the conference group is transmitted to the server IPR device. Audio transmitted by the server IPR device is output to all client IPR devices. 152 Application Examples

165 Failure If the server IPR device fails, the whole group will no longer be able to communicate. Configuration This mode is easier to configure than Peer-to-Peer as you only need to configure the IPR device acting as the server in the conference. All client IPR devices can be configured with a single destination (i.e. the server IP address). This configuration will typically be used when the server is connected to a dispatch console such as the Omnitronics 960CSD. Table 35 lists the configuration of the central server site IPR100 (E). Table 35. Configuration of IPR100 (E) using Dispatch Server conference mode Page Setting Value Description Network (Basic) VoIP/RTP (Basic) VoIP/RTP (Advanced) Location Name Automatically obtain IP address Remote IP Address IPR100-E Selected RTP Receive Port 5004 RTP Transmit Port 5004 Enable Conferencing IPR100-B.LOCAL Selected Enables DHCP server to allocate IP address, netmask, and gateway address. Specifies the IPR100 to send audio to: the others receive audio via the conference. Enables the selected conference mode Conference Mode Dispatch Server All IPR100 devices communicate directly: no single point of failure. Enable Selected Enables first destination for conference mode IP Address IPR100-C.LOCAL Address of first destination for conference mode Transmit Port 5004 Port used to transmit audio to first destination of conference mode Enable Selected Enables second destination for conference mode IP Address IPR100-D.LOCAL Address of second destination for conference mode Transmit Port 5004 Port used to transmit audio to second destination of conference mode Enable Selected Enables third destination for conference mode IP Address IPR100- A.LOCAL Address of third destination for conference mode Transmit Port 5004 Port used to transmit audio to third destination of conference mode IPR100/IPR110Plus Product Manual 153

166 The configuration of all the client radio sites is simpler than the central server site as conference mode does not need to be enabled. Table 36 to Table 39 list the configuration of each client IPR100 (A D). Table 36. Configuration of IPR100 (A) using Dispatch Server conference mode Page Setting Value Description Network (Basic) VoIP/RTP (Basic) Location Name Automatically obtain IP address IPR100-A Selected Enables DHCP server to allocate IP address, netmask, and gateway address. Remote IP Address IPR100-E.LOCAL Specifies the IPR100 to send audio to: the others receive audio via the conference. RTP Receive Port 5004 RTP Transmit Port 5004 Table 37. Configuration of IPR100 (B) using Dispatch Server conference mode Page Setting Value Description Network (Basic) VoIP/RTP (Basic) Location Name Automatically obtain IP address IPR100-B Selected Enables DHCP server to allocate IP address, netmask, and gateway address. Remote IP Address IPR100-E.LOCAL Specifies the IPR100 to send audio to: the others receive audio via the conference. RTP Receive Port 5004 RTP Transmit Port 5004 Table 38. Configuration of IPR100 (C) using Dispatch Server conference mode Page Setting Value Description Network (Basic) VoIP/RTP (Basic) Location Name Automatically obtain IP address IPR100-C Selected Enables DHCP server to allocate IP address, netmask, and gateway address. Remote IP Address IPR100-E.LOCAL Specifies the IPR100 to send audio to: the others receive audio via the conference. RTP Receive Port 5004 RTP Transmit Port Application Examples

167 Table 39. Configuration of IPR100 (D) using Dispatch Server conference mode Page Setting Value Description Network (Basic) VoIP/RTP (Basic) Location Name Automatically obtain IP address IPR100-D Selected Enables DHCP server to allocate IP address, netmask, and gateway address. Remote IP Address IPR100-E.LOCAL Specifies the IPR100 to send audio to: the others receive audio via the conference. RTP Receive Port 5004 RTP Transmit Port 5004 Multicast Gateway The Multicast Gateway conference mode depicted in Figure 80 is designed to provide a multicast gateway/bridge. Typically, this configuration may be used to bridge across the Internet. Figure 80. Multiple connections using multicast gateway conference mode Operation Audio received at the gateway IPR devices (C and D) from the respective routers is forwarded to all Omnitronics IPR devices in the multicast conference groups and vice versa. Failure Mode If IPR device (C) or IPR device (D) should fail, the connection between multicast groups via the Internet will fail, however, the local multicast groups will still function. IPR100/IPR110Plus Product Manual 155

168 Configuration This mode is easier to configure as only the server IPR devices (C and D) need to be configured in conference mode. All client IPR devices (A, B, E, and F) can be configured with a single remote multicast address and port. Table 40 lists the configuration of the server IPR devices for multicast operation using Gateway (Audio Linked) conference mode. Table 40. Configuration of IPR100 (C) and IPR100 (D) Page Setting Value Description Network (Basic) VoIP/RTP (Basic) VoIP/RTP (Advanced) Location Name IPR100-C or IPR100-D Network name of device Automatically obtain IP address Selected Enables DHCP server to allocate IP address, netmask, and gateway address. Remote IP Address Sets the address of the local multicast group that will be used for TX/RX audio. Note that this address will generally not travel over ta WAN such as the Internet. RTP Receive Port 5004 Port used to receive audio on the multicast group. Port must match in all devices taking part in the conference. RTP Transmit Port Enable Conferencing Conference Mode 5004 Port used to transmit audio on the multicast group. Port must match in all devices taking part in the conference. Selected Gateway: Audio Linked Enables the selected conference mode Audio received from the above multicast group will be translated into standard RTP data suitable for transmission over a WAN, then sent to the gateway address or addresses. Enable Selected Enables first destination for conference mode IP Address IPR100 (C) only The External IP address of Router B, e.g Router A will receive the translated multicast information from the gateway IPR100 (C) and will send this across the WAN (internet) to Router B, which will then port forward the information to gateway IPR100 (D). 156 Application Examples

169 Table 40 (continued) Page Setting Value Description IP Address IPR100 (D) only Transmit Port IPR100 (C) and (D) The External IP address of Router B, e.g Router B will receive the translated multicast information from the gateway IPR100 (D) and will send this across the WAN (internet) to Router A, which will then port forward the information to gateway IPR100 (C) Port used to transmit audio to first destination of conference mode Enable Selected Enables second destination for conference mode IP Address IPR100-D.LOCAL Address of second destination for conference mode Transmit Port 5004 Port used to transmit audio to second destination of conference mode Table 41 lists the configuration of the client IPR devices for multicast operation using the Gateway (Audio Linked) conference mode. Table 41. Configuration of IPR100 (C), (D), (E), and (F) Page Setting Value Description Network (Basic) VoIP/RTP (Basic) Location Name Automatically obtain IP address Remote IP Address RTP Receive Port RTP Transmit Port IPR100-A, IPR100-B, IPR100-E, or IPR100-F Selected Network name of device Enables DHCP server to allocate IP address, netmask, and gateway address Sets the address of the local multicast group that will be used for TX/RX audio. Note that this address will generally not travel over ta WAN such as the Internet Port used to receive audio on the multicast group. Port must match in all devices taking part in the conference Port used to transmit audio on the multicast group. Port must match in all devices taking part in the conference. Note that the routers in this example will need to be configured for port forwarding as shown in Table 42 and Table 43. This configuration tells the router where to send the received data on the local network. For further information, see Connecting Radios via ADSL and the Internet on page 133. IPR100/IPR110Plus Product Manual 157

170 Table 42. Port forwarding configuration for router at site A Protocol Remote Port External Address Local Port Local Address UDP IPR100-C.LOCAL UDP IPR100-C.LOCAL TCP IPR100-C.LOCAL Table 43. Port forwarding configuration for router at site B Protocol Remote Port External Address Local Port Local Address UDP IPR100-D.LOCAL UDP IPR100-D.LOCAL TCP IPR100-D.LOCAL IPR110Plus Radio to SIP/PSTN Gateway The IPR110Plus provides full support for the Session Initiation Protocol (SIP). This protocol allows the IPR110Plus to connect to SIP-enabled devices and phone systems. The IPR110Plus can connect directly or via a SIP server, however, most software or hardware SIP phones require a SIP server. When connected to a central SIP server, called a registrar, the IPR110Plus is available as a SIP device that can be called by any device or phone that has access to that SIP registrar, as depicted in Figure 81. Figure 81. IPR110Plus with software SIP phone Using either a SIP-enabled PBX or a third-party SIP server with PSTN support, the IPR110Plus depicted in Figure 82 can make and receive calls to the Public Switch Telephone Network (PSTN). 158 Application Examples

171 Figure 82. IPR110Plus SIP to PSTN gateway Incoming Calls When a call is made to the IPR110Plus, the caller contacts the SIP registrar which will remember that the IPR110Plus has registered and the Internet Protocol address of the IPR110Plus. It will forward the call request to the IPR110Plus and the caller will be connected. From this point onward, the IPR110Plus and the caller will send audio data directly, without involving the SIP registrar. Outgoing Calls The IPR110Plus can be set up so that any radio user can connect to a maximum of 12 SIP speed dial numbers. Each number can be assigned a SELCALL or DTMF sequence to connect and disconnect. When a radio user wants to call an external SIP device, that user sends the corresponding tone sequence; and the IPR110Plus communicates with the SIP registrar, which forwards the request on to the called device. From this point onward, the IPR110Plus and the called device will send audio data directly without involving the SIP registrar. Table 44 lists the configuration of the IPR110Plus. IPR100/IPR110Plus Product Manual 159

172 Table 44. Configuration of IPR100Plus using SIP Page Setting Value Description Network (Basic) SIP (Advanced) Location Name Automatically obtain IP address SIP Enabled IPR110PLUS-52A1000 Selected Selected Enables DHCP server to allocate IP address, netmask, and gateway address. Receives inbound calls via the SIP registrar, which knows the address of the IPR110Plus as it has sent a registration to the server. User Name Identifies this extension number and is used to authenticate the IPR110PLUS when it registers with the server. SIP Server Enable SIP Registrar server SIP outgoing proxy SIP server password Selected registrar.phoneco.com proxy.phoneco.com secret1 Enables SIP registrar and proxy functions. The IP address of the registrar server to which requests are sent. This information should be supplied by the service provider. The IP address to whioch outbound SIP messages are sent when making or receiving a SIP call. This information should be supplied by the service provider. Used to authenticate the IPR110Plus when it registers with the registrar server. SIP realm phoneco.com This information should be supplied by the service provider. Registration Expires 900 Used to authenticate the IPR110Plus when it registers with the registrar server. Omnitronics 960 Console to Radio with Inband Keying In-band keying is useful with radios/transceivers that do not provide E&M control lines. In this case, an in-band guard tone can be used to detect when the radio is transmitting or receiving. Using a pair of IPR110Plus devices, it is possible to connect an Omnitronics 960CSD console to a radio that uses guard tones to control keying. At the IPR110Plus connected to the Omnitronics 960CSD, the local busy output will be activated when the IPR110Plus (connected to the radio) detects a valid guard tone. 160 Application Examples

173 The IPR110Plus will use a notch filter to remove the guard tone from the audio sent to the Omnitronics 960CSD console. At the IPR110Plus connected to the radio, a guard tone will be generated whenever the IPR110Plus (connected to the console) detects the Push-to-Talk input is active. Table 45 and Table 46 list the configuration of the both IPR110Plus devices required to achieve the desired operation (for this example, the VoIP settings are not shown). Table 45. Configuration of IPR110Plus with 960CSD console Page Setting Value Description Radio/Handset Device Type Console / Handset Tone Signaling/Guard Tone Local Keying Mode Remote Keying Mode Transmit without local Busy/PTT signal Guard Tone Enable Tone signalling (remote Busy/PTT ignored) Local Busy/PTT Deselected Selected The console is connected to this device The local keying is controlled by the state of the remote guard tone detection. The local PTT state is sent to the remote IPR110Plus The IPR110Plus will only transmit while the PTT signal from the 960Console is active. Enabling the guard tone mode enables the notch filter that removes the guard tone from the received audio Frequency 2175 Guard tone frequency used by the radio Generate guard tone while Push to Talk output active Half Duplex Mode Low transmit level Enable high level tone Deselected Selected Disabled Disabled The console does not required the guard tone, we want to suppress it so it is not heard by the operator Ignore any received tones whilst transmitting tones. This setting can be unchecked if transmitting guard tones does not lead to false incoming tone detection The console does not required the guard tone, we want to suppress it so it is not heard by the operator The console does not required the guard tone, we want to suppress it so it is not heard by the operator IPR100/IPR110Plus Product Manual 161

174 Table 46. Configuration of IPR110Plus with radio Page Setting Value Description Radio/Handset Device Type Radio Radio connected to this device Tone Signaling/Guard Tone Local Keying Mode Remote Keying Mode Transmit without local Busy/PTT signal Guard Tone Enable Remote PTT None Selected Selected We transmit / key the radio locally when the remote console PTT is active. The remote device keying is controlled by the state of the local guard tone detection. The radio does not provide a BUSY signal. Enabling the guard tone mode enables detection of guard tone Frequency 2175 Guard tone frequency used by the radio Generate guard tone while Push to Talk output active Half Duplex Mode Low transmit level Enable high level tone Selected Selected Guard tone will be locally generated while the remote console PTT switch is depressed. Ignore any received tones whilst transmitting tones. This setting can be unchecked if transmitting guard tones does not lead to false incoming tone detection -20 dbm Set to the value required by the radio -10 dbm If the radio requires a high level guard tone pulse at the start of transmission this should be set to a level at or above voice transmit levels. Omnitronics Dispatch Console to P25 Basestation using MDC1200 The Tait TB9100 basestation/repeater provides an analog interface between dispatch consoles and P25 terminal radios. This interface supports the MDC1200 data protocol. It also supports certain tone-remote signaling functions. The IPR110Plus forms the interface between the Tait TB9100 basestation/repeater and Omnitronics dispatch consoles. 162 Application Examples

175 This example shows how to set up the IPR110Plus to interface the Tait TB9100 base station/repeater with Omnitronics consoles that support this functionality (DX-Altus, RediTALK, 960SIP). The IPR110Plus allows the dispatch console to send SELCALL messages to the P25 radio and to receive ANI (terminal ID) information. It can also change radio channels. If the dispatch system sends a 5-digit selective call tone sequence, it will get converted into an MDC1200 message. If the leading digit is a '0', the message will get converted to an MDC1200 Call Alert message. The next 4 digits are used to represent the MDC1200 Unit ID. When the radio sends an MDC1200 ANI message (command type 8001), the IPR110Plus converts it into a selective call sequence with a leading zero. Table 47 lists the configuration of the IPR110Plus required to control the Tait TB9100 base station. Table 47. Configuration of IPR110Plus (Omnitronics dispatch console to Tait TB9100) Page Setting Value Description SIP SIP Enable Selected Enable SIP so the dispatch console can connect to IPR110Plus. Tone Signaling MDC1200 Enable MDC1200 Selected MDC1200 Transmit Level Tx Gain -10 dbm Set level based on the radios input level requirement. Activate Push to Talk output Deselected This value has not effect because the MDC1200 / Tone translation is enabled Enable MDC1200 / Tone Translation Received Tone to MDC1200 Translation MDC1200 translation to Transmitted tone Received Tone Leading Received Tone Trailing Transmitted MDC1200 Command Transmitted MDC1200 Push to Talk Receive MDC1200 Command Transmitted Tone Leading Transmitted Tone Trailing Selected We are going to convert to/from the tone format messages used by the dispatch console. 0 Any 5 digit received Tone with a leading 0 will be converted into an MDC1200 message (0D83) Call Alert Deselected (8001)Push to Talk ID ANI No trailing tones This tone sequence will be converted into a MDC1200 Call Alert command Do not operate Push To Talk output while sending this MDC1200 Command Convert this MDC1200 command 0 Take the 4 digit unit ID from the MDC1200 message and create a tone sequence by adding a leading digit. No trailing tones IPR100/IPR110Plus Product Manual 163

176 Table 47 (continued) Page Setting Value Description Tone Signaling/Tone Remote Tone Signaling/Guard Tone Tone remote enable Selected Enable transmitting EIA Tone remote signals Number of Tones 1 Number of tones expected by the radio Transmit Level -10 dbm Output level expected by the radio Tone Duration 100 ms Tone duration expected by the radio Channel Change Enable Enable Frequency Detection Selected All Selected Convert channel change message from the dispatch console into tone remote signals In this application we are only transmitting Tone remote signals, so these options will have no effect Guard Tone Enable Selected Enabling the guard tone mode enables detection of guard tone Frequency 2175 Guard tone frequency used by the radio Generate guard tone while Push to Talk output active Deselected Half Duplex Mode Selected Ignore any received tones whilst transmitting tones. This setting can be unchecked if transmitting guard tones does not lead to false incoming tone detection Low transmit level -25 dbm Set to the value required by the radio Enable high level tone Selected Set so the radio will detect the tone remote sequence following it. High transmit level -5 dbm Set to the value required by the radio High level tone duration 100 Set to the value expected by the radio 164 Application Examples

177 Technical Reference This section provides technical details on the protocols used by the IPR product family, and includes the following: IP Addressing via the Internet and Local Area Networks VoIP Functionality on page 172 Simple Network Management Protocol on page 178 IP Addressing via the Internet and Local Area Networks This section provides technical details about the protocols used by the IPR product family and discusses some of the more complicated issues that may occur when using the IPR products in certain configurations. IP Addressing The IPR product family provides full support for IPv4; however, as at the time of publication, it does not support IPv6. Therefore, this section discusses IP addressing with respect to IPv4. All devices connected to the Internet or using IP for communication have an IP address. An IPv4 address consists of 32 bits expressed in a form consisting of four decimal octets separated by periods (dots), called dot-decimal notation. An example of an IPv4 address is The IPv4 address consists of two parts: the network address and the host address. The subnet mask determines what part of the IPv4 address is used to identify the subnet on which a device is located. A valid IPv4 subnet mask consists of 32 bits: a sequence of ones (1) followed by a block of zeros (0), expressed in dot-decimal notation. The sequence of ones (1) designates that part as the network address (subnet) and the block of zeros (0) designates that part as the host identifier. Not all IP addresses are created equal, however, and certain ranges of addresses have specific functions. Some addresses are allocated from the private address space used for private networks while others are allocated for multicasting. Currently, three classes of IP addresses are commonly used: IPR100/IPR110Plus Product Manual 165

178 Class A (the largest) is identified by the first octet, which ranges from 1 to 126. Class B is identified by the first two octets, the first of which ranges from 128 to 191. Class C (the smallest) is identified by the first three octets, the first of which ranges from 192 to 223. Table 48 shows the different classes and the range of addresses of an IP Address. Table 48. Classes of IP addresses Class of Address Range of First Octet Network Identity Host Identity Subnet Mask A a b.c.d B a.b c.d C a.b.c d Some first-octet values have special meanings: First octet 127 represents the local computer, regardless of what network it is really in. This is mainly used for local loopback testing. First octet 224 and above are reserved for special purposes such as multicasting. Octets 0 and 255 are not acceptable values in some situations, but 0 can be used as the second and/or third octet (e.g ). Another type of private networking uses the link-local address range (in IPv4, the block x.x, which is also shown as /16, is reserved for this purpose). This address range allows a network device to auto-configure its IP address when Dynamic Host Configuration Protocol (DHCP) services are not available. If a host on an Ethernet network cannot obtain a network address via DHCP, an address from to may be assigned pseudo randomly. The IP address space is controlled by the Internet Assigned Numbers Authority (IANA). Types of Remote Addressing The IPR supports the following types of remote IP addressing: Numeric Address is an IPv4 address, which consists of 32 bits expressed in a form consisting of four decimal octets separated by periods (dot-decimal notation). A common numeric address for a LAN is or You may also use a multicast address (see Multicast Addressing on page 167). Note The special address disables transmission this can be useful when using SIP (IPR110Plus only) to connect to a dispatch system (see, Session Initiation Protocol (SIP) on page 175). 166 Technical Reference

179 Fully Qualified Address is an internet address that uses a fully-qualified domain name, such as ipr100unit3.host.omnitronics.com.au. You can use a domain name only if the IPR device has been configured to use a domain name server (DNS). In this case, the address of the remote IPR device will be allocated by a DNS. This could be the case for an IPR device that is connected to the Internet via an ADSL modem. Internet Port Numbers An Internet port number is part of the IP header that identifies the type of data received or transmitted. The port numbers 5004 and 5005 are allocated for the Real Time Protocol (RTP) and are normally used for VoIP and video data. However, you might need to change the port number so the data passes through some types of network devices, particularly those that use Network Address Translation (NAT) or Port Forwarding. Also in the case where a VoIP device that can support more than a single connection, such as an Omnitronics IPR400, a separate pair of port numbers is needed for each VoIP connection. Multicast Addressing Multicast addressing or multicasting is a numeric IP addressing scheme that provides an efficient method of sending audio to multiple destinations (a one-to-many transmission). The originating device sends a single packet to a multicast address and the network infrastructure will deliver the packet to all the devices that are listening to the multicast address. Any device that wishes to receive packets sent to a particular multicast address will need to join the multicast group. To configure an IPR device to use multicast addressing, you set the remote address to a numeric multicast address. The IPR device will then join the multicast group associated with this multicast address and will communicate with all devices in the multicast group. For multicast addressing to work effectively, all the network routers in the network must support multicast addressing and have multicasting enabled in their configurations. If your network does not support multicasting, you cannot use multicast addressing; however, you can use conference modes to provide an alternate solution. For further information about conference mode, refer to Connecting Multiple IPR Devices Using Conference Mode on page 143. Audio received at any IPR device in the multicast group is transmitted once and received by all the other IPR devices in the group. Effectively all the radios or consoles are linked together. If any one IPR device fails, only that IPR device is affected. All the devices are configured to use a single multicast address as the remote address for their VoIP link. IPR100/IPR110Plus Product Manual 167

180 The protocol used to manage this process is the Internet Group Management Protocol (IGMP). The actual routing of multicast packets efficiently is complicated and is managed by the routers and switches that form the network infrastructure; this complexity is not visible to the end devices that simply have to join the group. The range of addresses to is reserved for multicast addresses: using any address from within this range will automatically put the IPR device into multicast mode. Note Mulicast addresses in the range of to are reserved and should not be used. IP Addresses in the range of to are multicast addresses, and are used for Internet-wide addressing. Using any address from within this range will automatically put the IPR device into multicast mode. You should use these addresses for communicating over a WAN or over the Internet. Multicast Addresses in the range to are used for local addressing and should be used for multicast configurations where all IPR devices are on the same LAN, or are all configured on the same IP subnet. Domain Name System (DNS) When you access a web site or a computer over the Internet, the address of that site or computer is usually expressed as a host name (or domain name), such as These host names are resolved into an IP address using a special server known as a Domain Name System (DNS) server. A computer communicates with a DNS server that will then provide the actual numeric IP address that corresponds to the host name. A host name consists of two or more labels; the rightmost label is the top-level domain and will be something like.com or.au. Each label to the left specifies a subdomain of the higher domain to the right. Omnitronics IPR products include the support for sending requests to DNS servers and hence resolving host names into numeric IP addresses. Dynamic Addressing Using a DHCP Server Most networks allocate IP addresses to computers and devices on the network using DHCP (Dynamic Host Configuration Protocol). The network provides a DHCP server that automatically assigns an IP address to each network device. DHCP is also widely used for dial-up and broadband Interconnection. The DHCP assigns the IP address, IP subnet mask and default gateway. DHCP servers generally provide addresses with a lease on a particular address for a certain time. As long as the device is leased, and a particular address is renewed, the address will remain allocated to that device. If the device does not renew the lease, the address may be allocated to some other device or computer. 168 Technical Reference

181 If a device that is configured for DHCP cannot contact a DHCP server on start-up, it will not have a valid IP address. In this case a device can default to using an address in the range Network Address Translation (NAT) The process of Network Address Translation (NAT) involves over-writing the source and destination addresses of IP packets as they pass through an ADSL modem or router. Figure 83 illustrates the concept of NAT. Figure 83. Using Network Address Translation (NAT) Systems using NAT do so in order to enable multiple hosts on a private network to access the Internet using a single public IP address. As well as over-writing the IP addresses sometimes the IP port number can also be changed; this is sometimes called port forwarding. Since there may be multiple computers behind a router that is configured to use NAT or port forwarding, it is necessary to configure the router to know the IP address of the IPR device to which a particular port should be forwarded. So for a VoIP link to work through a router that is performing Network Address Translation, additional configuration is required both at the IPR device and at the router. For an example that shows the type of configuration necessary when using an IPR device via an ADSL router that performs address translation, refer to Connecting Radios via ADSL and the Internet on page 133. SIP Network Address Translation can be even more problematic. Part of the SIP call set up is to negotiate which ports to use for sending the RTP/RTCP data. Because these ports are dynamic it is not possible to set up the router in advance for port forwarding. Many ADSL routers include SIP Application Level Gateways (ALG). An ALG is a software component that runs on the ADSL router that understands a particular protocol and allows that protocol to work despite the firewall and NAT. The SIP ALG will re-write parts of the SIP translation with the correct information and set up the associated port forwarding settings automatically. IPR100/IPR110Plus Product Manual 169

182 Dynamic Domain Name System (Dynamic DNS) Dynamic DNS is a system for allowing an internet domain name to be assigned to a non-static public IP address. This makes it possible to remotely establish connections to network devices without the need of tracking their changing public IP addresses. Most internet service providers employ a technique of allocating IP addresses dynamically on demand unless clients desire a fixed IP address. As fixed IP addresses come at a premium, most internet users make do with dynamic IP addressing. Network devices that are hosting services behind routers with dynamically changing IP addresses will thus only be reachable by means of DNS lookup. For this to work, however, it is important that references to IP addresses are kept up to date. The onus of keeping the DNS server(s) up to date rests on either the router or at least one network device behind the router. Implementation The Dynamic DNS feature can be enabled on any IPR device running firmware V3.07 or later. If this feature is enabled, the IPR device will perform all dynamic DNS related operations; and it will be responsible for tracking changes in the public IP address by which the device will be reachable across the internet. As an IPR device will typically reside on the private side of a company's network (behind the public router), it will have a private IP address. In order for an IPR device to connect to a remote IPR device, it will need to know the public IP address of the router at the remote end. Furthermore, if the public IP address of the router changes, the Dynamic DNS feature will update its configured Dynamic DNS server. This involves an HTTP request to associate its fully qualified domain name to the new public IP address. Any subsequent name resolution requests should then resolve to the latest public IP address. The IPR device configuration allows for all remote ends to refer to fully qualified domain names. This applies to the VoIP remote destination, conferenced remote destinations, and serial pass-through remote destination addresses. An additional feature of the Dynamic DNS is to perform periodic name resolution of these destination addresses provided they do not contain a raw IP address. If any of the configured remote devices experience a change in public IP address, the local IPR device will perform the required housekeeping to re-establish the RTP, or the conferenced or pass-through communications. Additionally, any SIP conversation can also benefit by optionally forwarding the public IP address of the device to the remote side during SIP call establishment. 170 Technical Reference

183 Compatibility The Dynamic DNS client is designed to be compatible with the DynDNS API as both DynDNS.com and No-IP adhere to this API standard. Minor modifications were made to the client to accommodate ChangeIP.com. The client may well be compatible with other Dynamic DNS host services if they adhere the DynDNS API but this cannot be confirmed. The best approach will be to try your preferred dynamic DNS host service to see if the IPR device is compatible with it. Configuration Figure 84 on the following page shows the different aspects of the dynamic DNS configuration: (A) DNS Servers At least one DNS server is required. (B) Syslog host address Required to log dynamic DNS activity. (C) Public IP Service Returns public IP address of the requester. (D) Dynamic DNS Host Required to update the dynamic DNS host. The Dynamic DNS feature will not work unless at least one of the DNS server fields (A) points to an actual DNS server that is reachable by the device it affects the ability of the device to perform domain name resolution. A value of indicates that this setting is not in use. Ideally these DNS server fields should point to the IP addresses of the DNS servers provided by your ISP used to access the internet. (A) (B) (C) (D) Figure 84. Dynamic DNS configuration In order to log Dynamic DNS activity, you will need to configure the Syslog host address (B) to point to a network device running a Syslog daemon. Note Syslog does not exclusively log Dynamic DNS activity. IPR100/IPR110Plus Product Manual 171