TARIFF DISTRIBUTION. With this project, we will be withdrawing the Dataphone Select-A- Station Service from the Guidebook

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1 FILE PACKAGE NO.: LA TARIFF DISTRIBUTION DATE: April 1, 2013 STATE: LOUISIANA EFFECTIVE DATE: 04/01/2013 TYPE OF DISTRIBUTION: Approved PURPOSE: With this project, we will be withdrawing the Dataphone Select-A- Station Service from the Guidebook TARIFF SECTION PAGE NUMBER PAGE REVISION G H H H H H H Subj. Indx (pg) H Subj. Indx (pg)

2 AT&T LOUISIANA GENERAL EXCHANGE GUIDEBOOK First Revised Page 2 A9. FOREIGN EXCHANGE SERVICE AND FOREIGN CENTRAL OFFICE SERVICE A9.1 Foreign Exchange Service (Cont'd) A9.1.3 Rates And Charges A. Methods Of Applying Rates 1. The rate for Foreign Exchange (FX) Service is the nonrecurring and monthly rate for: a. Flat Rate or Measured Rate Individual Line Service or PBX Flat or Measured Rate Trunk Line or Network Access Service rate applicable within the serving foreign exchange, b. mileage charges, and c. Flat Rate or minutes of use banded usage charges. Usage charges as described in c. preceding are not applicable to residence customers, FX channels where the originating and terminating ends have identical Local Calling Areas or to FX service in connection with Network Access Service. For Centrex Type Services off premises stations, the Centrex Type Services applicable within the Base Rate Area of the serving foreign exchange applies, plus mileage and installation charges specified in A following. In all cases, the nonrecurring charges specified in Section A4. are in addition to the installation charge in A following. B. Interexchange Channel 1. Each exchange has a Rate Center. Charges are based on the airline distance between Rate Centers. 2. Airline distance between Rate Centers is determined as provided in the Private Line Guidebook, C C. Interoffice Channel 1. When a customer requests Foreign Exchange Service from a Wire Center that is not the primary Wire Center, interoffice mileage charges apply. Charges are based on the airline distance between the primary Wire Center and the Wire Center from which the customer is served. 2. When a customer is located in a Wire Center, in the foreign exchange, that is not the primary Wire Center, interoffice mileage charges apply. Charges are based on the airline distance between the primary Wire Center and the Wire Center serving the area where the customer is located. D. (DELETED) E. In case the subscriber is located outside the Base Rate Area of the exchange area from which he normally would be served, a Zone Charge as set out in "Zone and Exchange Mileage Charges", A3.9. of this Guidebook will apply in addition to the Foreign Exchange Mileage Charge. F. Provided facilities are available and technical equipment allows, extension station service will be furnished in the foreign exchange. The charge quoted in Section A13. for channels for extension line applies for each station. G. The Local Service Area of, and Long Distance Rates to and from, main stations or PBX and Centrex Type Services connected for Foreign Exchange Service are the same as regularly apply to stations located in the foreign exchange area.

3 AT&T LOUISIANA PRIVATE LINE GUIDEBOOK First Revised Page 5 B3.2 Service Descriptions (Cont'd) B3.2.2 Voice Grade Service - Series 2000 (Cont'd) C. Transmission parameters for voice grade service are described following: 1. Type A two-wire interface with effective two-wire facilities engineered for a 1004 Hz net loss of 0 to 10dB. Generally furnished for voice transmission - Private Line Telephone, Mobile Radio Telephone, or Supervisory Control Use. Multipoint service may be provided at charges specified in B3.4.4.A. following. 2. Type A two-wire interface with two or four-wire facilities engineered for a 1004 Hz net loss of 0dB to 4.5dB. This is generally used for PBX (or similar system) off-premises main or extension station services. Signaling is required for this service. 3. Type A two or four-wire interface with effective four-wire facilities engineered for tie line service use between PBX's or customer-provided communications systems. Signaling is required for this service. 4. Type A two or four-wire interface for connection to the serving wire center where loop facilities are not required. This channel is suitable for tie line service (with E&M signaling) between Centrex Type Services Systems and may be connected with Type 2432 local channels. 5. Type A four-wire interface with effective four-wire facilities engineered for a 1004 Hz net loss of 0 to 16db. Generally furnished for voice transmission. Multipoint service may be provided at charges specified in B3.4.4.A. following. 6. Type A two-wire interface with effective two-wire facilities engineered for use in Telemetry/Alarm Bridging Service (TABS). 7. Type A four-wire interface with effective four-wire facilities engineered for use in Telemetry/Alarm Bridging Service (TABS). 8. Type A four-wire interface with four-wire facilities engineered for a 1004 Hz net loss of 16dB. Generally used in the provision of analog data services. Multipoint service may be provided at charges specified in B3.4.4.A. following. 9. Type A two-wire interface with four-wire facilities engineered for a 1004 Hz net loss of 16dB. Generally used in the provision of analog data services. Multipoint service may be provided at charges specified in B3.4.4.A. following. (C) (C)

4 AT&T LOUISIANA PRIVATE LINE GUIDEBOOK First Revised Page 5.1 B3.2 Service Descriptions (Cont'd) B3.2.2 Voice Grade Service - Series 2000 (Cont'd) D. Signaling Arrangements 1. Off Premises Stations a. For use with PBX (or similar system) off-premises channels for terminal equipment. Signaling arrangements are furnished for grandfathered and registered PBX (or similar) systems in accordance with Part 68 of the FCC Rules and Regulations or for customer-provided communications systems not subject to Part 68 of the FCC Rules and Regulations. Type A - Furnished for use with Class A PBX (or similar) system station ports capable of operation over loops with resistance in the range of ohms. Type B - Furnished for use with Class B PBX (or similar) system station ports capable of operations over loops with resistance in the range of ohms. Type C - Furnished for use with Class C PBX (or similar) system station ports capable of operation over loops with resistance in the range of 900 ohms or more. b. For connections to registered or grandfathered PBX (or similar) system equipment, the customer must specify the equipment capability for use with Type A, B, or C Signaling Arrangements. 2. Tie Lines a. E&M signaling is provided for use with tie line channels with E&M signaling interfaces. Signaling Arrangements are furnished for grandfathered and registered PBX's in accordance with Part 68 of the FCC Rules and Regulations or for customer-provided communications systems not subject to Part 68 of the FCC Rules and Regulations. - An E&M Signaling Arrangement is required for each tie line termination, operating in a Dial Repeating mode, at a customer's premises with a registered PBX. - An E&M Signaling Arrangement is required for each tie line termination at a customer's premises with grandfathered PBX's when the tie line is arranged with an E&M signaling interface. - An E&M Signaling Arrangement is not required with Types 2432 and 2434 channels for additions to or for new installations of grandfathered PBX equipment when not arranged with an E&M signaling interface. - An E&M Signaling Arrangement is required for each Type 2432 or 2434 channel termination at a customer's premises with a customer-provided communications system not subject to Part 68 of the FCC Rules and Regulations when arranged with an E&M signaling interface. E. (DELETED)

5 AT&T LOUISIANA PRIVATE LINE GUIDEBOOK First Revised Page 6 B3.2 Service Descriptions (Cont'd) B3.2.2 Voice Grade Service - Series 2000 (Cont'd) E. (DELETED) (Cont'd)

6 AT&T LOUISIANA PRIVATE LINE GUIDEBOOK First Revised Page 7 B3.2 Service Descriptions (Cont'd) B3.2.2 Voice Grade Service - Series 2000 (Cont'd) E. (DELETED) (Cont'd) F. Telemetry/Alarm Bridging Service (TABS) 1. Regulations a. This section contains the regulations applicable for Telemetry/Alarm Bridging Service (TABS) b. Except as otherwise specified following, the regulations contained herein are in addition to the regulations found in other sections of this Guidebook. c. TABS requires the use of equipment as specified in F. and Type 2261 or 2462 voice grade local channels described in C. preceding. d. Terminal equipment provided by the customer for use with TABS must meet specifications for such customer-provided equipment found in other sections of this Guidebook. e. No more than 128 remote stations may be connected to a master station over an individual Split Band Active Bridge. f. In Split Band Active Bridging arrangements, secondary bridges must be directly connected to the primary bridge via mid-link channels. Secondary bridges cannot be connected through other secondary bridges to allow additional layers of tandeming. g. Secondary bridges, utilized in Split Band, Active Bridging arrangements, reduce the two-wire remote station capacity of the primary bridge. The initial secondary bridge reduces the primary bridge capacity by twelve two-wire remote station connections. Each subsequent secondary bridge reduces the primary bridge capacity by four additional two-wire remote station connections. At the customer's option external bridging may be provided for connecting secondary bridges at the rate applicable in B3.4.4.A.1.a. without reducing the two-wire capacity of the primary bridge. h. Standard multipoint bridging charges as provided in other sections of this Guidebook are not applicable to TABS, except as provided in g. preceding. i. Access over four-wire master station channels for Split Band Active Bridging is provided using a Type 2462 local channel. j. Access over remote station channels is provided through a Type 2261 local channel and through the appropriate channel connection as contained in B3.4.4.A.1.e. following. Interconnection of remote stations located outside the serving wire center where the bridge to which they are to be connected is located will require interoffice channels at charges contained in B3.4.3 following. k. Access over each four-wire mid-link channel for Split Band Active Bridging is through voice grade interoffice channels at charges contained in B Additionally, mid-link channel connections are required as described in B3.4.4.A.1.e. following. All AT&T and BellSouth marks contained herein and as set forth in the trademarks and service marks section of the BellSouth Tariff are owned by AT&T Intellectual Property or AT&T affiliated companies.

7 AT&T LOUISIANA PRIVATE LINE GUIDEBOOK Eighth Revised Page 15 B3.4 Rates And Charges (Cont'd) B3.4.4 Optional Features And Functions (Cont'd) A. Bridging (Cont'd) 1. Voice Grade Bridges (Series 2000) (Cont'd) c. (DELETED) d. (DELETED) e. Telemetry and Alarm Bridging - Split Band, Active Bridging (1) Common Equipment, per central office (a) First bridging shelf, capacity of 48 two-wire connections (b) Additional bridging shelf, capacity of 56 two-wire connections installed subsequent to the first bridging shelf (c) Additional bridging shelf, capacity of 56 two-wire connections installed at the same time as the first bridging shelf (2) Channel connections, per channel connected Monthly Nonrecurring Rate Charge USOC $ $ XW XW XW8 (a) Remote station channel connection XW3 (b) Mid-link channel connection, first channel XW4 (c) Mid-link channel connection, subsequent channels XW5 All AT&T and BellSouth marks contained herein and as set forth in the trademarks and service marks section of the BellSouth Tariff are owned by AT&T Intellectual Property or AT&T affiliated companies.

8 AT&T LOUISIANA PRIVATE LINE GUIDEBOOK First Revised Page 4 SUBJECT INDEX SUBJECT D. SECTION Data Communicating Equipment... B4 (DELETED) Data Terminal Equipment, Connection of... B2 Deferment of Start of Service or Channels... B2 Definitions... B2 Demarcation Point... B2 Deposits... B2 Digital Network Service... B107 All AT&T and BellSouth marks contained herein and as set forth in the trademarks and service marks section of the BellSouth Tariff are owned by AT&T Intellectual Property or AT&T affiliated companies.

9 AT&T LOUISIANA PRIVATE LINE GUIDEBOOK First Revised Page 19 SUBJECT INDEX SUBJECT S. SECTION Same Building Channels... B103 Secondary Channel Capability... B6, B7 Series 1000 Channels...B3, B103 Series 2000 Channels... B3 (DELETED) Series 6000 Channels...B3, B103 Series 7000 Channels... B5 Series Channels... B3 Service Mark Protection... B2 Services Furnished by the Customer, Connection of... B2 Signaling... B4 Simultaneous Use... B2 Space Facilities, Connection of... B2 Special Arrangements... B5 Special Billing Arrangements... B5 Special Equipment... B5 Special Routing Of Channels... B3 Special Promotions... B2 Special Signaling Service, Series B3 Special Types of Construction... B2 Subvoice Grade Service, Series 1000 Channels... B3 Obsolete Service... B103 Surrender of Private Line Service, Temporary... B2 Suspension of Service... B2 Switched Service Network, Louisiana Government... B4 Switching Arrangements... B4 SynchroNet Service... B7 All AT&T and BellSouth marks contained herein and as set forth in the trademarks and service marks section of the BellSouth Tariff are owned by AT&T Intellectual Property or AT&T affiliated companies.

A9. FOREIGN EXCHANGE SERVICE AND FOREIGN CENTRAL OFFICE SERVICE

A9. FOREIGN EXCHANGE SERVICE AND FOREIGN CENTRAL OFFICE SERVICE AT&T KENTUCKY GENERAL EXCHANGE GUIDEBOOK First Revised Page 1 CONTENTS A9.1 Foreign Exchange Service 1 A9.1.1 Terms and Conditions 1 A9.1.2 Billing of Foreign Exchange Service Provided by Multiple Companies