1. Information and Communication Networks Challenges and Opportunities Advantages of a new architectural paradigm PSTN Switch Line Card Trunk I/F Line Card Switching matrix Call Processor, SS7 Processor Maintenance & Administration SS7 Distributed MSF* Architecture Open platforms Open interfaces between all components Softswitch provides Trunk- and Local- Switch features Gateways support various media stream conversions Integrated functionality Proprietary platforms and partly proprietary feature development Standard IN interface for externally- provided services IP/ATM Network Subscriber Gateway Subscriber Gateway Subscriber Gateway Subscriber Gateway Trunk Gateway Trunk Gateway Trunk Gateway Trunk Gateway Signalling Gateway Softswitch SS7 *MSF=Multiservice Switching Forum; defined a widely accepted architectural model for carrier convergence

2. Information and Communication Networks The bricks that make a voice NGN work Value adding services platforms Softswitch full feature set Gateways to TDM networks Access gateways SURPASS hiQ 4000 SURPASS hiQ 6200 SURPASS hiQ 9200 SURPASS hiG 1200 SURPASS hiA 7600 SURPASS - Siemens’ complete product portfolio for NGNs

3. Information and Communication Networks Edge Management Control SURPASS - builds the Next Generation Network Core IP Phones/ Terminals IP PBX IP Backbone SURPASS hiG SURPASS hiR SURPASS hiS IP Clients and Terminals IP Local Office CPGs IADs SCP IN SURPASS hiA IP/ATM Network Subscriber Gateway Subscriber Gateway Subscriber Gateway Subscriber Gateway Trunk Gateway Trunk Gateway Trunk Gateway Trunk Gateway Signalling Gateway Softswitch MSF Model Access NetManager Value added services IP Customer Premises Access Consolidation CMTS CM/MTA SURPASS hiQ DSLAM /DLC

4. Information and Communication Networks SURPASS Solution overview Virtual Trunking the packet based core for fixed and mobile networks Switch MSC Phone Packet Local Switch LEX consolidation, replacement, user growth PBX Switch SIP, multimedia Applications NextGen Applications SIP-based multimedia,...across any network we SURPASS Switch MSC NGN IN PSTN PLMN SCP Signaling Overlay Network the universal signaling bridge for all networks SURPASS Voice over Broadband any service over your broadband subscriber line IP Phone IAD & CPG IP PBX

5. Information and Communication Networks hiG Trunk Gateway The Next Generation Network transport plane MGCP/MEGACO Packet Core Network MGCP/MEGACO SS7 or SS7 over IP SURPASS Virtual Trunking Seamless integration into any network environment bearer SS7 bearer hiQ 9200 Softswitch TCAP hiR MGCP BICC* SS7 STP PSTN SCP LNP IN SS7 STP Relieves tandem network congestion and supports growth through a self-managed, self-provisioned packet overlay network NetManager

6. Information and Communication Networks Phase 1 2003 - Trial 79 E-1 CO 79 E-1 BHE STP SS7 CO STP IB/LI CAS/ARQ

7. Information and Communication Networks Phase 2 2003 – Class IV SIP-T INAP-BR SDH 57 E-1 19 E-1 57 E-1 JG ST CO IB IP JD 117 E-1 12 E-1 81 E-1 103 E-1 75 E-1 64 E-1 25 E-1 RJO VTA BHE SDR BSA CTA PAE STP SS7 COIB STP IB/LI CAS/ARQ