1© Nokia Siemens Networks Presentation / Author / Date IMS/NGN based Fixed Network Evolution 6th of February 2010 Ingo Drüeen

2© Nokia Siemens Networks Fixed Network Evolution proposal Our solution „Fixed Voice Transformation“ Content

3© Nokia Siemens Networks IMS – the perfect evolution story in fixed networks TDM Switch Voice Separation of application and control Supports a large variety of application servers Cost savings using common service core MGW IMS VoIP & Multimedia Apps Apps Separation of control and bearer Cost savings using IP transport MGW Soft Switch VoIP

4© Nokia Siemens Networks TDM TDM control architecture and TDM access Possible Fixed Network Evolution

5© Nokia Siemens Networks NGN IP-based control architecture and TDM access (re-used) TDM TDM control architecture and TDM access Invest CAPEX to reduce OPEX Possible Fixed Network Evolution Options NGN

6© Nokia Siemens Networks NGN IP-based control architecture and TDM access (re-used) TDM TDM control architecture and TDM access IMS/VAS/MSAN IMS/IP-based control architecture and IP access reduce further OPEX and get new revenue generating features Possible Fixed Network Evolution Options NGN

7© Nokia Siemens Networks The IP Multimedia Subsystem (IMS) … is a Layered IP-based service control architecture enables integrated voice, data and multi-media services is access agnostic (mobile, fixed, cable) is fully standardized by 3GPP, ETSI TISPAN and PacketCable Leading operators (Fixed, Cable, ISP’s, Mobile) invest now in IMS to lower Operational Expenditures (OPEX) (e.g. power, real estate, transmission) reduce time to market with faster roll-outs avoid costs of later application migration from non-standardized environments provide a smooth migration path towards LTE compete with the “Googles” of the World Why leading operators invest into IMS

8© Nokia Siemens Networks Global trends Mobile data Mobile voice Fixed VoIP Fixed broadband PSTN voice PSTN voice stays important Significant households broadband penetration drives VoIP & new services Mobile terminals everywhere drives convergence Comparable revenues by fixed and mobile PSTN voice revenues still very attractive and need to be secured Declining revenues from PSTN voice needs to be compensated by attractive bundles with DSL, VoIP and new services Source: National Regulators, ITU, Nokia Siemens Networks April 2009, VoIP (Ovum)

9© Nokia Siemens Networks 5©Nokia Siemens NetworksApril 2007 For internal use I New Revenues Revenue increase and enhanced user loyalty with new blended services / applications: Common Subscriber Database: generate revenues from subscriber data assets as a trusted identity provider for multiple service/content providers  Rich Communication Services  Web 2.0 & multimedia integration  IP Centrex, Family Centrex, Web self administration  Presence service and new services around and beyond voice

10© Nokia Siemens Networks Other possible Services on the fixed net ? Gaming (Multiplayer up to 16 Players simultaneously) - gaming, chatting IP Television - integrate IPTV and Telephony, Instant Messaging Fixed Mobile Convergence - Leverage fixed and mobile access - VCC at home or for HotSpots OCS = Office Communication Server

11© Nokia Siemens Networks Master all-IP Network complexity OPEX & complexity To realize the full business potential, fixed operators have to evolve Strong competition Decreasing voice ARPU Margins & revenues € Business transformation Efficiency Revenue growth Broadband connectivity Operator challenges  Use economies of scale and achieve up to 70% savings  Save more than 60% OPEX & CAPEX by simplifying network while securing voice revenues  Roll-out new services 30% faster at less costs  Win new / keep customers utilizing broadband and attractive bundles

12© Nokia Siemens Networks Fixed Network Evolution proposal Our solution „Fixed Voice Transformation“ Content

13© Nokia Siemens Networks Fixed Voice Transformation Use your IMS network to also serve POTS subscribers on the same infrastructure Enable migration towards an All-IP network keeping the revenue generating POTS services and featuresEnable migration towards an All-IP network keeping the revenue generating POTS services and features POTS and SIP users are handled identically from network point of viewPOTS and SIP users are handled identically from network point of view 3GPP and ETSI TISPAN compliant IMS Service Architecture3GPP and ETSI TISPAN compliant IMS Service Architecture One common carrier grade platform for all access types and servicesOne common carrier grade platform for all access types and services Solution Overview IMS Platform TDM network Support of “existing” residential POTS Combine with new Broadband access Reduce fixed-voice OPEX already with an IMS environment Efficiency Revenue Growth Connectivity Business Transformation Operator Challenges Operator Benefits Reduce OPEX by up to 60% in a next generation network environmentReduce OPEX by up to 60% in a next generation network environment Keep existing POTS revenues Future-proof and standardized IMS-based architectureFuture-proof and standardized IMS-based architecture Common platform for delivery of the important POTS services together with new multimedia servicesCommon platform for delivery of the important POTS services together with new multimedia services Operator Challenges

14© Nokia Siemens Networks Fixed Voice Transformation Solution DLU re-use with AGCF Interworking Enablers and Applications Control Subscriber Data Mgmt ENUM Nominum Navitas NT-HSS Terminals Access PLMN PSTN T-MGF hiG 1x00/ IPA 2800 MGCF hiQ 8000/ hiE 9200/ MSS Server CSCF CFX-5000 RACS PCS-5000 IMS xSP Web server hiQ 4300 VAS hiQ 4200 Media server Mereon 6000 Broadband Fixed Narrowband MSAN hiX 563x One-NDS OBSS ChargingOAMProvisioning IN SCPSNP SS7 SWITCH POTS Phone DLU re-use Existing Access network re-use AGCF CAX 5800 Fixed Narrowband hiG 1600DLU BGF ACME 4250 POTS Phone

15© Nokia Siemens Networks Fixed Voice Transformation IMS and VoIP global references More than 18 Mio VoIP licenses shipped to 60 customer for consumer and business users IMS with more than 30 commercial references and 50 customer trials Fujian Telecom City of Nanning US Army Cingular & GeorgiaTech Operator

16© Nokia Siemens Networks Presentation / Author / Date Thank you