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International Telecommunication Union Promising services to boost NGN Helmut Schink VP Network Standards, Siemens International Telecommunication Union Promising services to boost NGN Helmut Schink VP Network Standards, Siemens ICN Workshop on Next Generation Networks: What, When & How? Geneva, 9 -10 July 2003 Page -

Evolution of CPE devices ITU-T Support of different service quality Mobility & Security Dynamic Evolution of CPE devices ITU-T Support of different service quality Mobility & Security Dynamic Delivery Of New Services Remotely Managed & Upgradable Internet Enabled devices Connectivity to Multiple devices on Home Networkin g Within the home Broadband Connectivity to One Device Modem 1999 9 -10 July 2003 Router 2000 2001 Service gateways 2002 2003 Workshop on Next Generation Networks: What, When & How? 2

Intelligent Services Gateway ITU-T Interface to Application Domains Home Gateway External BB network Wireless Intelligent Services Gateway ITU-T Interface to Application Domains Home Gateway External BB network Wireless Connectivity Home Security Home Management Communications, Information, Work-At-Home, Education 9 -10 July 2003 Entertainment Workshop on Next Generation Networks: What, When & How? 3

Multiservice access The DSLAM grows up! ITU-T Residential Splitter / Modem Advanced residential – Multiservice access The DSLAM grows up! ITU-T Residential Splitter / Modem Advanced residential – SME Home gateway WLAN BS x. DSL POTS ISDN-BA ISDN-PRA V 5. x E 1 / LL Phase 1: Separate backbones for voice and data Initial DSL roll-out Multi-service access combines voice and data access capabilities in a single backbone Bundle DSL with a new POTS proposition and get rid of legacy features!!! Phase 2: Packed-based backbone for voice and data Evolution and gradual DLE replacement Media Gateway Controller Signaling Gateway Call Feature Server ice Vo P/ MGC 8 H. 24 TDM network Dat a Voic ea Dat nd a IP network 9 -10 July 2003 Any DSLAM Qo. S IP network Workshop on Next Generation Networks: What, When & How? 4

PSTN evolution ITU-T o The classical PSTN market is stagnating o Obsolescence is not PSTN evolution ITU-T o The classical PSTN market is stagnating o Obsolescence is not key, but lack of flexibility within current PSTN network is a limiting factor o Main threat for PSTN operators: o Shift of telephony services to other infrastructure providers o Main opportunity for PSTN operators: Migration of existing infrastructure towards broadband o Voice drives the revenues of the telcos, but focus for investment is NGN o Media gateways, call feature servers, and signaling gateways are the key building blocks of a multi-service architecture 9 -10 July 2003 Workshop on Next Generation Networks: What, When & How? 5

The SIP challenge Who's selling the services? ITU-T Security, Authentication Presence IM MM PC The SIP challenge Who's selling the services? ITU-T Security, Authentication Presence IM MM PC Session Control Layer LAN DSL Modem SIP Proxy Server SIP Applications SIP Proxy Server 3 rd party applications SIP Call data DSL Modem IP IP IP PER IP Network Layer SIP PER IP IP 9 -10 July 2003 MM PC My. Service Connectivity SIP Phone DSL Modem Workshop on Next Generation Networks: What, When & How? 6

The SIP Challenge: Ownership of user data ITU-T My. Service ISP MM PC DSL The SIP Challenge: Ownership of user data ITU-T My. Service ISP MM PC DSL Modem 3 rd party applications SIP Proxy Server LAN 3 rd party applications DSL Modem User Database, Security, SIP Authen. Proxy tication Server SIP-Phone UTRAN UMTS 9 -10 July 2003 PER Presence IM Network Layer Applications PER Connectivity Workshop on Next Generation Networks: What, When & How? 7

towards value-added services ITU-T · Value-added services will become the main differentiator · Most towards value-added services ITU-T · Value-added services will become the main differentiator · Most added value services are based on voice, data, and mobility convergence and require support beyond best effort Services Business vision IP networking Transport service 9 -10 July 2003 Customer confidence Security Customer service Qo. S Availability Reliability Mission critical business applications Business specific applications e-Commerce Web hosting IP VPN Key requirements Business leadership (innovations) Differentiation: Business opportunity Commodities Operational leadership Workshop on Next Generation Networks: What, When & How? 8

The new service architecture ITU-T The service architecture delivers: · Service models focusing on The new service architecture ITU-T The service architecture delivers: · Service models focusing on the experience, not the connection · Business models that are flexible and easily adaptable - Different services for different markets with different billing - Simultaneously delivery of: - Low volume / high margin services - High volume / lower margin services · Drive model from bits to experiences · Product creation and definition for fast market trial Service Models Assured experience VOIP VPN GAMING Better than best effort INET Best effort 9 -10 July 2003 Workshop on Next Generation Networks: What, When & How? 9

The New Broadband Service Control Architecture ITU-T Service Intelligence Domain · The The New Broadband Service Control Architecture ITU-T Service Intelligence Domain · The "IN" of the data network · Virtualization of the service - Customer-centric view · Manage services, not bits · Real time changes to the Network / service management connection between - Customer and content, or - Customer and customer Policy management (service control) Service Delivery Domain Access On the Move PSTN Home Broadband home, SME 9 -10 July 2003 IP Core WLAN BS VPN POTS / ISDN ATM / Ethernet x. DSL HGW Edge Router (MPLS) Core Content domain · Delivers scalability and reach - "Any Access" - DSL & WLAN · Service Resiliency · Carrier-, not enterprise-focused · Performance for all traffic types · Virtualization of the network · Meditation of legacy systems · Ease of management Workshop on Next Generation Networks: What, When & How? 10

Example: The Turbo Mode browser talks BRAS ITU-T o • Opens an Ad Window Example: The Turbo Mode browser talks BRAS ITU-T o • Opens an Ad Window • Demands Higher Speed from the Unisphere ERX Router • Sends Unique User ID Data to the ISP • ISP Allows more Speed and Sends Targeted Advertising Demand for more Speed + User ID Content domain IP Core Edge Router Higher Bandwidth + Advertising (MPLS) Core BRAS Opera Browser 9 -10 July 2003 Workshop on Next Generation Networks: What, When & How? 11

The New Broadband Service Control Architecture (Session Control) other Voice e. g. Vo. D The New Broadband Service Control Architecture (Session Control) other Voice e. g. Vo. D Gaming Softswitch ITU-T Service Intelligence SIP Apps. SIP-T SIP Service Selection Control SIP Proxy SIP MGCP/H. 248 Service Delivery Domain Access On the Move PSTN Home Broadband home, SME 9 -10 July 2003 IP Core WLAN BS ATM / Ethernet x. DSL HGW Edge Router separation of service selection and service interaction · Service interaction most probably SIP based · Architecture allows controlled access of independent service providers (e. g. gaming, Vo. D) · controlled access b/w · controlled Qo. S · billing/accounting possibilities PSTN / PLMN VPN POTS / ISDN · Architecture allows (MPLS) Core Workshop on Next Generation Networks: What, When & How? 12

Today's Network Overview ITU-T TDM IP Access Aggregation Core Transit SW Servers & Special Today's Network Overview ITU-T TDM IP Access Aggregation Core Transit SW Servers & Special Routers Transit SW e. g. ERX BB-RAS DMZ Gwy FW Web … SDH/DWDM Local SW SDH PBX POTS/ISDN/PABX CPE LAN DSL CPE ATM SOHO Local-Loop Enterprise IP Connection Single or multi home PBX CPE LAN PBX IP Terminals 9 -10 July 2003 POTS/ISDN/PABX IP Terminals Workshop on Next Generation Networks: What, When & How? 13

ITU-T All IP Network Multi Operator Scenario Operator A Operator B Access Core Aggregation ITU-T All IP Network Multi Operator Scenario Operator A Operator B Access Core Aggregation Backbone BB-RAS VPN: PPP or MPLS Provider vs CPE provisioned POTS Trunks DSL CPE RAS selection CPE LAN IP Terminals 9 -10 July 2003 BB-RAS Core Access Aggregation L 2: - Low CAPEX & OPEX - Fast Failover Qo. S: - Engineering needed - 801. 1 p Prio. Ehternet - No advantage for MPLS - MPLS needs awareness throughout the path Regulatory: - More Transparency - e. g. RAS of other OP. Workshop on Next Generation Networks: What, When & How? 14

The 21 st Century network architecture ? • Co-existence and interworking ITU-T SCP architectures. The 21 st Century network architecture ? • Co-existence and interworking ITU-T SCP architectures. for some time Agent, · Co-existence Softswitch, (Call. MGCF) with NGN MSC-S, CSCF, · Gradual migration of customers Access On the Move UMTS/ GSM Mobile Access Gateway WLAN BS PSTN POTS/ISDN Home Broadband Home, SME Corporate & High End SME Customer 9 -10 July 2003 ATM/ Ethernet x. DSL HGW Vo. TDM Data, Vo. IP Multi Service Acc. Gatew. Open I/f Parlay, CORBA · PSTN and PLMN will be about Call Contr. CDN Appl. IN Signaling HLR VLR (STP, SGW, GTT, LNP) Service Control · Who owns the intelligence wins COPS, SIP, MGCP interfaces between ! … • Open / MEGACOthe revenue Open service element·layer and OSS creation environment · centric view IP networks • Customer Agnostic to delivery Core • Customer access to management IP· Ethernet Metro / Multiple access technologies (WLAN, x. DSL, GE, …) VPN · DSLAM is evolving into the prime multi- Integration on • Multi-Service service GE the optical layer access gateway • Dynamic assignment of PSTN / PLMN RPR / MPLS Edge Router · Low end CPE - a commodity · High end CPE - multi service platform, (MPLS) capacity Core Voice Gateway • Becomes commodity • GE and Lambda products in mobility, security and managed · Customer lock-in by delivering metro Ethernet /managed services • Legacy ATM access NG Multi-Service Optical Networking Platform LL / VPN • Qo. S support Workshop on Next Generation Networks: What, When & How? Resource Control / Self Managing Network Management / OSS Applications / Content of multiple control 15

Not to forget ITU-T o Basic services need to be • interoperable • easy Not to forget ITU-T o Basic services need to be • interoperable • easy to use • affordable o Differentiation needs to be supported for • businesses • high end users 9 -10 July 2003 Workshop on Next Generation Networks: What, When & How? 16