Ensuring Excellence of Experience in End-to-End Multimedia Services

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All other trademarks mentioned in this document are property of their respective owners. Italtel S.p.A. cannot guarantee the accuracy of the information presented, which may change without notice.

1 Ensuring Excellence of Experience in End-to-End Multimedia Services Federico Descalzo, Head of Multimedia Products and Solutions Italtel, Italtel logo and imss (Italtel Multi-Service Solutions) are registered trademarks owned by Italtel S.p.A. All other trademarks mentioned in this document are property of their respective owners. Italtel S.p.A. cannot guarantee the accuracy of the information presented, which may change without notice. All contents are Copyright 2006 Italtel S.p.A. - All rights reserved. Prague, 27 th June 2011

1921-2011: Celebrating 90 years of Italtel June 11 1 90s and 2000s: Italtel completes the trasformation of

Communication 1921 80s 2000s 2004-2007 2008-2010 90s 80s and 90s: for twenty years Italtel has been the

2 : Celebrating 90 years of Italtel June s and 2000s: Italtel completes the trasformation of Telecommunication Network Control Centers Today: Italtel develops products and solutions for the new Multimedia Communication s 2000s s 80s and 90s: for twenty years Italtel has been the protagonist of Italian Telephony digitalization 2000s: Italtel realizes the transformation of Telephony over the Internet Protocol

Italtel offer: Overview 2 June 11 NGN+IMS Core & Services HSS e

Signalling & Media Gateways Multimedia Access OSS ICT Security

15 Offer areas based on Integrated Solutions & Proprietary Products

Managed Services IP Borderless Networks Unified Communication &

3 Italtel offer: Overview 2 June 11 NGN+IMS Core & Services HSS e Subscriber Data Management Systems Session Border Controllers, Signalling & Media Gateways Multimedia Access OSS ICT Security Network Management System Service Provider Public Sector Enterprise 15 Offer areas based on Integrated Solutions & Proprietary Products developed in house Engineering & Testing Consulting & Assessment Managed Services IP Borderless Networks Unified Communication & Collaboration HD Video Networks Intelligent Traffic Management NG Data Centers NGMN: Packet Core

4 Global Telecom Trends: Overview 3 Source: Infonetics, Fundamental Telecom/Datacom Market Drivers (December 20, 2010)

5 End-to-End QoE and End-to-End QoS Short term scenario No IPX 4 Best Effort Global Internet when end-to-end QOS is not required Internet Apps SP A SP B Internet Apps Web/RCS GW Session Control Session Control Web/RCS GW Border Function NNI SBC Border Function Border Function Border Function SEG RTP/MSRP RTP/MSRP SEG SIP (RCS ) Apps SIP (RCS) Apps End-to-End Quality of Experience (QoE) QoS through Access and NNI Policy Management and Application-based routing QoS through IP class of Service Marking MPLS-TE

IPX demand drivers 5 Network simplification Common IP transport layer shared among CS and PS networks High capacity network elements with centralized deployment and operations & charging

Support of innovative services Beyond voice (also mobile) e2e IP based new services (RCS-e, Videotelephony, Presence, IM, Content Sharing) LTE roaming scenarios Security Protection of IP-IP

6 IPX demand drivers 5 Network simplification Common IP transport layer shared among CS and PS networks High capacity network elements with centralized deployment and operations & charging functions. OPEX Optimisation. Support of innovative services Beyond voice (also mobile) e2e IP based new services (RCS-e, Videotelephony, Presence, IM, Content Sharing) LTE roaming scenarios Security Protection of IP-IP NNI Secure environment Flexible Charging support Usage data for billing reconciliation Source: GSMA CDR and/or charging event Connectivity IP NNI, IPv6 Advanced Routing and re-routing, symbolic URI, LCR, etc. QoS and Policy Management Differentiated SLA mgmt among operators: CAC/bandwidth mgmt per interconnected domain Traffic Controls (origin/destination)

7 Quality of Experience (QoE): Hard to define but for sure a Key Success Factor 6 The overall acceptability of an application or service, as perceived subjectively by the end-user. by ITU-T P.10/G.100 Considers the complete end-to end system effects (client, terminal, network, services infrastructure, etc.) QoE also depends on users expectations, on the characteristics of the designed system and on the context within which the interaction occurs Within ETSI TC HF deliverables QoE has been defined (since 2006) as per ETSI EG and ETSI TR : The performance of users when using what is presented by a communication service or application user interface. NOTE: It takes into account the individual Quality of Services and measures the acceptability of a service or application by including factors such as usability, utility, fidelity and level of support from the application or service provider (e.g. sales, delivery, error corrections).

8 QoE: OTT and SP perspectives 7 ETSI has developed (EG ) a systematic approach for extracting and combining user experience and technical parameters: IF <communication situation>; USING <service prescription>; WITH <technical parameters>; THEN <user experience>. OTT s are trying to differentiate from each other and consider E2E QoE as something that can be improved by acting on Clients and Web applications Telecom SP s tend to have less and less control on End User Equipment and Clients and need to federate and join forces in order to define a common and converged service offer that definitley provides specific value added vs OTT s ones. Telecom SP s (MNO s and FNO s) may be able to enforce transport layer perflow or per-application Policies within their own Network Domain but cannot guarantee the End-to-End signalling and media flows IPX approach is key!

9 Let s go straight to QoS guarantees by IPX Carriers 8 In order to ensure that, at the interconnection, sufficient capacity is present with the highest level of confidence, a dimensioning scheme with an over-provisioning factor is suggested. ( Voice Over IPX Release 1, July 2010 )

VoIPX: Recalling General Architecture and Key Functions 9 From Voice Over IPX Release 1, July 2010 : Border Functions Call Handling Functions Other Functions: Signalling

10 VoIPX: Recalling General Architecture and Key Functions 9 From Voice Over IPX Release 1, July 2010 : Border Functions Call Handling Functions Other Functions: Signalling and Media Functions Security Functions Break-in/out from/to non-ipx SP s and Carriers is allowed QoS Control Routing and Traffic Management Accounting and Charging principles

11 i3 VoIPX: QoS considerations (1) 10 From: QoS Control & Monitoring - The i3 Forum approach for QoS Control for international voice services - presented by Ian Campbell, PTGi ICS May 26, 2011

12 i3 VoIPX: QoS considerations (2) 11 From: QoS Control & Monitoring - The i3 Forum approach for QoS Control for international voice services - presented by Ian Campbell, PTGi ICS May 26, 2011

13 i3 VoIPX: QoS considerations (3) 12 From: QoS Control & Monitoring - The i3 Forum approach for QoS Control for international voice services - presented by Ian Campbell, PTGi ICS May 26, 2011

14 i3 VoIPX: QoS considerations (4) 13 From: QoS Control & Monitoring - The i3 Forum approach for QoS Control for international voice services - presented by Ian Campbell, PTGi ICS May 26, 2011

15 i3 VoIPX: QoS considerations (5) 14 From: QoS Control & Monitoring - The i3 Forum approach for QoS Control for international voice services - presented by Ian Campbell, PTGi ICS May 26, 2011

16 Italtel Smart Network Products Focus on interconnection i-ssw Renewal IMS Evolution NetMatch i - PMP i - NEM i-icm i - EMX OSS / BSS Layer Interop. Layer Evolution i-cse MMTEL Virtual PBX N@BOOK i-rps Data Layer Evolution Service Layer IPv4/IPv6 IWK Virtualization Data Layer i-tds NetMatch Control Layer i-vls Interoperability Layer Fixed Access i-ssw i-mcs Mobile Access

BGCF, Transition Function (TrF) Media management Security Beyond the standard : Routing & Policy Function (RPF) IP-IP Service Level

17 Italtel NNI Value Proposition 16 Functional continuity with traditional interconnection (PSTN, Mobile) MGF, MGCF Advanced interconnection over IP transport ETSI 3GPP/TISPAN (3GPP/R8+) compliant solution RPF Border Gateway : IBCF, i-bgf Interworking : IWF, BGCF, Transition Function (TrF) Media management Security Beyond the standard : Routing & Policy Function (RPF) IP-IP Service Level Agreement policy verification Call Admission Control OLO X OLO Y Interconnection Service Level agreement Routing optimization in multi-carrier scenarios

18 NNI Solution High level functional view 17 Management - Accounting routing/policy request Routing and Policy Function routing/policy request routing/policy request IBCF IWF SIP BGCF TrF SIP MGCF SIP domain I-BGF MG PSTN IP interconnection Routing & Policing PSTN interconnection IP border PSTN border NNI Solution

Product Highlights 18 Italtel i-rps Centralized Routing and Policy Server Innovative features Centralized

Innovation and continuity Framework combining a powerful E.

Available on: COTS HW (Cisco UCS preferred) ATCA platform Highly scalable & Integrated solution Deployable as a

19 Product Highlights 18 Italtel i-rps Centralized Routing and Policy Server Innovative features Centralized Routing & Policy control; Advanced Service Handler; Number Analysis; Access external DBs; Service Brokering Innovation and continuity Framework combining a powerful E.164 analysis & routing engine, advanced IN Services and interfaces, plus new ones Different Hardware platforms Available on: COTS HW (Cisco UCS preferred) ATCA platform Highly scalable & Integrated solution Deployable as a stand-alone system or as a subsystem of i-mcs 2.0. Innovative technologies and solutions Based on the latest available techologies 3GPP TISPAN OASIS IETF GSMA Open Standards

20 Overview Centralized provisioning of the network Centralized routing control. NP, routing, policy in a single access. i-rps 2.0 External Databases Rich Statistics and Reporting can be used to monitor traffic routes and take decision for network planning Resources optimization. ENUM Managed Sigtran SS7 network INAP MAP Diameter SIP/SIP-I Generic nodes cost-effective routes Managed for any kind of interconnection IP SSW nodes MSC nodes IBCF nodes SIP nodes All kind of networks: IMS or multi-technology scenarios, e.g. IMS, NGN, PSTN/PLMN and R4.

21 Policy Decision Function 20 Application of specific policy rules on the border of the network towards interconnected carriers so to guarantee QoS and SLA management. RPS i-nem The Policy Decision Function maintains the description of all the possible routes with the policy rules to control. MGCF/ VTCH PSTN/ PLMN INAP H.248 MGW NetMatch-S Diameter SIP-I IBCF Diameter Rf H.248 IP-IP BGW (transcoding, NAPT-PT, etc) domain domain Media domain domain media domain IP interconnected carriers Policies includes: Call Admission Control (in/out/total number of concurrent calls per interconnected carrier) Call Admission Control (in/out/total used bandwidth per interconnected carrier) Bandwidth management from SDP descriptor High priority calls (no blocking policy) Emergency calls (no blocking policy) Policy application on the basis of additional parameters (related to service, VLAN, logical i/f)

22 Centralized Routing Logic 21 Routing decisions based on policies set by the network administrator. Managing legacy E.164 phone numbers with SIP URI, including also domain based routing; Routing conditioning (based on Info related to all the available routes both IP and TDM based): Priority (e.g.: low cost) LCR Time Origin Number of calls Media Transcoding free QoS Routing Volume of calls VBR Media (audio, video, etc) Bandwidth Barring options Signaling compatibility Load sharing among the possible routes Re-Routing. Route state monitoring

Centralized Routing Logic 22 destination Origin Tel-Number URI URI DestGroup URI Treatment = List

Routing = A Routing Cases Outgoing route conditioning: Time Media (audio/video) Volume accounting

domain domain Media domain Originating Domain I-BGF CSCF BGCF Media stream IBCF MGCF I-BGF I-BGF

23 Centralized Routing Logic 22 destination Origin Tel-Number URI URI DestGroup URI Treatment = List of Routing Cases Routing Case 1 Aka specificrouting Routing Case 2 Routing Case 16 specifc Routing = A Routing Cases Outgoing route conditioning: Time Media (audio/video) Volume accounting (e.g. min) Load Sharing Rouway = Outgoing Route next domain RPS Routing Cases Local domain Media domain domain Media domain Originating Domain I-BGF CSCF BGCF Media stream IBCF MGCF I-BGF I-BGF SGF T-MGF Interconnected Carriers domain Media domain domain Media domain PSTN/ISDN Destination Domain

24 Main functional blocks 1/2 23 Access to external DB (INAP based NPDB with possible extensions to ENUM and different DB). SCP ENUM server Number Analysis for Digit Manipolation and Service Logics Triggering. Routing possibility selection according to configured conditioning. Number Analysis Routing Logic i-rps 2.0 Policy Engine Service brokering: any combination of internal & external service logics Service Logics Database Internal Service Logic; NPDB, PNP,Emergency, Call Screening, etc. Possibility to mix routing and policy management, bandwidth management. ENUM INAP MAP Diameter SIP ENUM INAP Sigtran To SSF MAP Sigtran To MSC Future needs? powerful number analysis and routing capabilities combined in complex service logics allows to easily follow the evolution on both commercial and regulatory sides.. Diameter (LB) IP nodes SIP (LB) Provide the requested services oneshot from a single interface.

Main functional blocks 2/2 24 Local Management and i/f towards i-nem (Element Manager). i-nem OSS/BSS (e.g. CIC, ipmp) SCP N/B O&M i/f ENUM server Application Platform i-rps 2.

Local GUI, CLI Number Analysis Routing Logic Policy Engine Service Logics Database Service Logics - brokering OpEx reduction due to the

25 Main functional blocks 2/2 24 Local Management and i/f towards i-nem (Element Manager). i-nem OSS/BSS (e.g. CIC, ipmp) SCP N/B O&M i/f ENUM server Application Platform i-rps 2.0 RPFcontroller. Local GUI, CLI Number Analysis Routing Logic Policy Engine Service Logics Database Service Logics - brokering OpEx reduction due to the centrally managed policy and routing databases without the need to apply changes in all the different network nodes. ENUM ENUM INAP INAP Sigtran To SSF MAP MAP Sigtran To MSC Diameter Diameter (LB) IP nodes SIP SIP (LB)

26 Service logics brokering 25 Complex service logics combining (with a single access to RPS) many different features Any possible combination of internal and external functions IN SCP ENUM server Number Analysis Routing Logic Policy Engine Protocol Stacks Service Logics Database Service Logics Broker Protocol Stacks SS7 network Diameter Interconnected carriers To be implemented (or completed) in R. 2.0 Interconnected carriers

27 Service brokering 26 Example: NP DB query plus routing with a single access to RPS. Number Analysis i-rps IN Service Logics Broker Protocol stacks SCP Routing Logic 1. starting from a request coming from a network node, both for mobile and fixed networks scenarios, individuate the specific behavior from Service Key in the original request; 2. Perform (if necessary) number analysis with digit manipulation (insertion or removal) and save & restore in order to normalize the received dialing information; 3. Identify specific Service Logic (internal or external) to apply (e.g. NP query to external INAP NPDB); 4. Invoke Service Logic; 5. Service Logic provides a Continue or a Connect indication; (To be continued) Access to number analysis is flexible and performed, according to the configuration, in different phases during the execution of the service logic, e.g.: first logic invocation, after a response from an external or internal logic (e.g.: routing engine)

Service brokering 27 Number Analysis i-rps 6. 7. IN Service Logics Broker Protocol stacks 11. 8. SCP Routing Logic 9. 10. 6. possibility to perform again number analysis (e.g. digit manipulation, save/restore ); 7.

28 Service brokering 27 Number Analysis i-rps IN Service Logics Broker Protocol stacks SCP Routing Logic possibility to perform again number analysis (e.g. digit manipulation, save/restore ); 7. Determine possible further operations on received answer from the SCP after new manipulation; 8. e.g. invocation of Routing Logic (routing/policy conditioning defined by the network operator) 9. e.g. Routing Logic provides an Internal Routing Number. 10. The process may repeated many times in order to apply again Digit Manipulation and possibly other service logics (Subsequent accesses to number analysis, anyway optional, provides also mechanisms for sequentially invoking different service logics). 11. provide final answer. Apply re-routing procedures whenever necessary.. Other information can be used to complete the complex service logic: Type of call (e.g.: local, long distance, ); Code identifying the carrier; Routing Prefix, etc.

29 Network Traffic Engineering objectives 28 Dynamic and automatic reconfiguration of routing plans with specific attention to the provision of multimedia services on the basis of input traffic and resources utilization. Opportunities: Need: High number of interconnected carriers (incumbent and competitive) High variability for commercial proposals Resources usage optimization in the core network Service Reach Quick treatment of new commercial proposals Automatic reconfiguration Simplification of the routing model Objectives: Routing configuration browsing possibilities Repository of of present routing configuration Determine the optimal routing configuration (e.g. Least Cost routing) Determine how to modify the current configuration according to the optimal configuration Upload on RPS and apply the new configuration

30 Traffic Engineering (modelling) 29 External link Active calls Bandwidth Other (e.g. type IP/TDM, allowed media, etc) Centralized Routing Configuration Origins Routes Active calls Bandwidth Other (e.g. type IP/TDM, media, etc) Internal link Active calls Bandwidth) Other (type IP/TDM, etc) Interconnected carriers Active calls Bandwidth Other (type IP/TDM, etc) Services Cost of interconnection Destinations Carriers Interconnected carriers Other origins/destinations

31 Traffic Engineering architecture 30 Direct i/f with OSS level OSS Fault Management Reporting tool RPF Controller i-rps Provisioning Inventory CDR & Measur. Analysis Collection RPF RPS i/f destination Interconnected carriers Interconnected carriers Other origins/destinations

Traffic Engineering and RPFC (RPF controller) 31 OSS Fault Management Network model (topology, traffic origins/destinations, thresholds) Reporting

i-rps Capacity Management (routing design, capacity design) Provisioning Inventory Network planning (node planning, transport planning) CDR & Measur.

32 Traffic Engineering and RPFC (RPF controller) 31 OSS Fault Management Network model (topology, traffic origins/destinations, thresholds) Reporting tool Alarms on links, routes, etc Network model; Required Capacity Current Capacity; Forecast Traffic RPF Controller Destinations, Carriers, Costs i-rps Capacity Management (routing design, capacity design) Provisioning Inventory Network planning (node planning, transport planning) CDR & Measur. Analysis RPF Resources usage monitoring Routing Configuration Update Traffic Management (bandwidth brokering, policing) RPFC Input Data RPFC Output Data

33 Final notes 32 Telecom SP s need to leverage their network and addressing (E.164) assets, in order to provide any-to-any Multimedia communicatons, where QoS is a key factor for guaranteeing Excellence of Experience Long Distance Carriers can leverage on the VoIPX specs for helping National SP s improving end-to-end QoS and therefore QoE, implementing advanced Routing and Policing mechanisms Interconnection models will evolve towards QoS-enabled exchange platforms in order to enable publicly and globally available, open services such as: HD Videocommunication Telepresence Further opportunity to evolve IPX as CDN Exchange

34 June Thank You!

Ensuring quality control and enhanced experience for global multimedia services

Ensuring quality control and enhanced experience for global multimedia services Marco Gall de Paratesi, Head of Product Management Italtel, Italtel logo and imss (Italtel Multi-Service Solutions) are registered