Telekom Malaysia’s NGN Implementation Plan Salmiah Abd Majid General Manager NGN Development Telekom Malaysia salmiah@tm.com.my www.tm.com.my

Where we are We (Peninsula Malaysia) is 2,500km away from Sri Lanka The distance from both ends of Malaysia (i.e. Peninsula Malaysia to West Malaysia) is approximately 2000km 2

Major NGN Architecture Guidelines Avoid/Minimize the silos approach for different services Create a multi-access approach Extend the packet network as close as possible to the user Minimize/eliminate unnecessary packet to TDM conversion Minimize trans-coding in general Implementation of a policy driven network resource control mechanism

Subscriber Quality of Experience PSTN Migration Operator’s Concern TM NGN Architecture Security Trends IPv6 Deployment Services Plans CPE Subscriber Quality of Experience PSTN Migration 4

TM NGN Architecture – Current and Long Term Mobile Network Mobile Network PSS … ... PoC IM CRBT Video Mail Rich call PSS … ... PoC IM PSS … ... PSS PSS … … ... ... PoC IM … PoC PoC IM IM … … CRBT CRBT Video Mail Vedio Mail Rich call Rich call … … More Multimedia More Multimedia Application Application Layer Layer Unified IMS service Platform Unified IMS service Platform HSS HSS Service Control Service Control Layer Layer SoftSwitch / AGCF/MGCF AGCF/MGCF AGCF AGCF CSCF CSCF AGCF AGCF SoftSwitch / Lacks Scalability High upgrade Cost Lacks Open Standards Lacks wireline credibility Lacks IMS Compliance for Mobility Lacks plan for terminal compatibility Lacks Complete Solution – no GSM Unproven Services and Portfolio Lacks stable Wireless Media Gateway Bearer Bearer yer yer La La IP IP (FMC (FMC Resource Manager) Resource Manager) Service POP Service POP yer yer La La BRAS BRAS xGSN xGSN The evolution from old world to a new world network architecture has been a work in progress since the last decade at TM. TM’s recent transformation of it’s network architecture has been the result of a 4 year plan. TM is currently migrating IP bearer network from ATM to MPLS, from legacy OSS/BSS to consolidated OSS/BSS with SDP and from PSTN to NGN. Evolution is not an option, but a way of life for TM to maintain it’s leading position as the nation’s tier-1 carrier. Beginning this year, TM decided the direction for us in moving forward is IMS. Hence, instead of the Soft switch we adopted a network design comprising both AGCF and Soft Switch. In the years ahead, and God willing, we shall further evolve the architecture to an IMS centric AGCF model. TM’s CDMA network is distributed over three areas: Peninsular, Sabah and Sarawak. The core network is supplied by Huawei (TDM C6) MSC switch, radio access network is supplied by Motorola and Huawei respectively. Mobile VoBB maturity and readiness of IMS Handsets are the key factors affecting the CDMA Evolution Plan. Glossary: HGW Home Gateway SDP Service Delivery Platform ATM IP RFC 1483 enabled IP over ATM AGCF Access Gateway Control Function // The AGCF shall appear to other CSCFs as if it were a P-CSCF VoBB Voice over Broadband DTS Digital Tandem Switch DLS Digital Local Switch Scrap Notes Being a ‘late’ adopter of IMS, we are in the position to reap the benefits of developed standards. Required update to the blueprint. TM’s long term NGN architecture serves both new and legacy services. Migration planning is in progress in the POTS (PSTN and IMS AGCF) VoBB (FTTx, MSAN) xDSL (ATM to Access Gateway and IP MSAN) The existing legacy network and new IMS network is expected to co-exist for 6-8 years until migration completes. TM’s new services is shifting towards IP Centrex and Messaging with support for Legal Intercept and Emergency Services and <future> integration with Mobile Network (CDMA). // need to find out quantity of DLS and DTS to be migrated // e.g. 500 nodes nationwide ? Access Access yer yer La La DSLAM DSLAM AG AG IAD IAD HGW HGW DTS/DLS UTRAN GERAN UTRAN CDMA /FTTX /FTTX CPE Layer 5

TM’s Targeted Converged NGN Common Core Network e Commerce Information Services Entertainment Content MMS, LBS, etc Directory Services Applications IMS Control IP Backbone Other Networks MGW Connectivity Mobile Fixed Seamless services Access

Security Trends IMS Domain SIP-AS Back Office SIP S-CSCF Firewall AGCF and Softswitch H.248 P-CSCF SBC Firewall IP Bearer SIP Phone

IPv6 Deployment Stages IPv6 deployment approach of TM NGN highly depends on the IPv6 readiness of terminals of end-users. IPv6 Islands with IPv4 Dominance IPv6 Network and IPv4 Network in equivalent shares IPv4 Islands with IPv6 Dominance 2009 2010 2011 2012 2013 2015 As the major telecommunication service provider TM plays an important role to ensure successful transition from existing IPv4 network towards the future IPv6 network and hence fully aligns with the IPv6 Deployment Plan as defined by the Malaysian Regulator – MCMC. Based on the latest IPv6 Deployment Plan updated by MCMC, the deployed network shall be IPv6 ready by year 2010. We expect 3 stages of Deployment: By 2010, the deployment of IPv6 is in stage 1 where most of the IPv6 networks are islands compared to IPv4 networks. At this stage, the majority of the CPEs and networks are still based on IPv4. By 2013, with the aggressive allocation of IPv6 addresses and exponential growth rate of Broadband customers based on IPv6, then the overall IPv6 deployment will be in Stage 2. In Stage 2, IPv6 and IPv4 networks are equivalent in number. By 2015, the IPv6 deployment will ascend into Stage 3 where IPv4 networks are considered as an island compared to the dominant size of IPv6 networks. Two concerns: IPv6 deployment approach of TM NGN highly depends on the IPv6 readiness of terminals of end-users. Assumption is based on exhaustion of IPv4 addresses by Y2011 and exponential growth rate of IPv6 CPE terminals being deployed for future broadband services. IPv6 rate of adoption impacted by global slowdown a valid cause of concern ? Glossary MCMC – Malaysian Communications and Multimedia Commission (MCMC) Assumption is based on exhaustion of IPv4 addresses by Y2011 and exponential growth rate of IPv6 CPE terminals being deployed for future broadband services.

Service Plans Part 1: Service enhancement via IMS Part 2: Existing service inheritance, integration & multimedia services via IMS IMS based Voice Existing Service Node integration // Voice revenue in Malaysia market is still exhibiting growth, but the growth only comes from mobile, whereas mobile voice dominated 74% of market share by the end of 2007. // Although TM holds a sizeable piece of the total voice market, TM relinquished its market share to Maxis in 2005. Declining market share also indicates increasingly aggressive fixed mobile substitution in the market. // Mobile penetration has reached 93.9% as at Q3’ 2008. The slowdown of growth in subscriber number and falling ARPU points towards saturation in mobile voice market. TM as the market leader in broadband with a strong year-on-year customer growth of 32% to 1.6 million in Q3 2008, has unveiled plans to bring High-Speed Broadband also known as “HSBB” to every household in Malaysia’s major urban areas over a 10-year period. For the immediate term, TM’s service plan comprises 2 parts: Part 1: Bundling carrier class Voice with High Speed Broadband will offer TM’s customers a wider choice and a richer experience. VoBB allows users to make and receive calls over a broadband connection. One can enjoy the service by using a broadband-enabled fixed phone or PC/laptop. VoBB provides basic Voice Services as well as Supplementary Services, such as Call Transfer, Call Forward, Call Waiting, Outgoing Call Barring etc. Other value added are offered on top of basic services including ring back tone, SMS, Multi-number one line VoIP services had experienced a strong growth in 2007. However, it is a lackluster year for most of the ASPs as the market dynamics had turn to the favor of the incumbent carrier, TM. This is owing to TM’s resolute focus on conquering the VoIP market towards the end of 2005. TM’s dominance in both VoIP and broadband space (1.4 million subscribers or 85% market share in Q2 2008) enables TM to position themselves as a strong player in VoBB. TM has the advantage of leveraging on its existing base to cross sell VoBB via broadband bundling. Part 2: Traditional IN services will be triggered in the NGN platform through the gateway with the TELLIN System. Advanced IN services will migrate to TELLIN Application Server (AS). The TELLIN application server connects to the C5 Softswitch through SIP. Just as AIN TELLIN will serve domestic and international subscribers. Glossary AIN Advanced Intelligent Network AS Application Server Initial service rollout based on PSTN charging principle

TM Network and Long Term Service Plan Data Video Voice VoIP Comm. IPTV Triple- Play IMS Evolve to a service-oriented architecture Unified IMS core Mashup IPTV ICT IMS Voice Data Service enhancement & Reuse existing assets NGN Legacy inherited IPTV IPTV Centrex Data Voice Voice/Video call NGN NGN VoBB 2009 2017 10

CPE Brown Field Green Field IPTV Internet SoftSwitch&AGCF Bearer IMS POTS IMS IPTV PC/Softphone SIP Phone POTS IPTV Brown Field Internet POTS SIP Phone To SoftSwitch POTS To IMS though AGCF SIP Phone Green Field To IMS though P-CSCF IPTV PC/Softphone 11 11

Subscriber Quality of Experience Admission Control Policy Control P-CSCF SIP Policy Decision Point A-RACF SPDF Policy Enforcement Point Customer Site IMS E2E QoS control architecture is divided into three layers comprising: Service Control Layer Bearer Control Layer Transport Bearer Layer The CSCF implemented (which is responsible for call session control) sends the QoS control request to the entities in bearer layer during establishment of call session. SPDF&A-RACF are responsible for QoS policy decision and management of bearer and access Network resources. // The NASS now shown in this diagram acts as DHCP server and storage of location information derived from Option82. The layer involves BGF (implemented by SBC), IP Bearer, aggregation/access Network (MetroE). // In Huawei IMS QoS architecture, BGF provides the policy enforcement functionality according to the QoS policy received from RACS. // RACS comprises A-RACF and SPDF Glossary BGF Border Gateway Funtion RACS Resource and Admission Control Subsystem A-RACF Access-Resource and Admission Control Function SBC Session Border Controller EPE Edge Provide Edge SPDF Service-based Policy Decision Function Scrap Notes The Access Gateway (AG) tags VLAN, 802.1p and DSCP for different traffic from terminals, including voice, signaling. The Metro E Provider Edge (EPE) tags MPLS EXP for different traffic profiles from Access Gateway to the EPE based on VLAN or 802.1P, and then sends the traffic into the Metro-E. The Metro-E guarantees the QoS based on MPLS EXP. The SBC in the IMS edge tags DSCP for voice, media and signaling. The A-RACF & SPDF/PDF/PCRF functionalities accomplishes service/session based QoS control by enforcing QoS policy according to service, subscriber and subscription type. SBC IP Bearer xDSL Modem CPE AG 12 12

Network Migration Roadmap Phase 1 Phase 2 International Clearing House Inter-working Complete replacement (1.5 years) PSTN migration to NGN Remain within three years; Inter-working POTS and VoBB Legacy Complete PSTN replacement to IMS

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