1. 1 TOT to NGN By Dr. Kamthon Waithayakul EVP, Office of Engineering TOT Plc.

2. 2 British Telecom: Moving to 21CN Today – customers must connect to multiple networks to get what they want Tomorrow – customers connect how they wish, services consistent across different access technologies, cost leadership From this:To this:

3. 3 IP / MPLS Backbone Aggregation Customer Access Network Control Layer Service Platforms Core/Backbone networks Transmission Shared Information System France Telecom: one IT & network  One IT & Network is our strategy toward NExT objectives Gigabit Ethernet

4. 4 SDH IP Metro LAN PSTN & ISDN ATM ININ SCPSCESMS SSP ISP Gate Way NSC EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX EXEX STP DDN BRAS TOT’s exiting network

5. Standard NGN Architecture Network Management / NG-OSS / BSS Service Control functions Voice Services Service Transport Transport Control functions Security / QoS IP/MPLS Transport Edge functions Other Networks CPE Data Services Value Added Services Content Services Wholesale Services Copper Access (MSAN) Fibre Access (PTP, PTMP) Wireless Access (WiMAX, WiFi) Mobility (2G/3G) 3rd Party Application Providers

6. Technology for the ONE service layer Sensible if moving to mobile Where the vendors are going Industry standard architecture Fixed Voice plus Broadband Build a NGN to deliver voice and broadband services Fixed Voice plus Broadband Build a NGN to deliver voice and broadband services Fixed Voice, Broadband and Multi-Media Services Build a NGN to deliver voice and multi-media services Add Web 2.0 services from hosting centres Fixed Voice, Broadband and Multi-Media Services Build a NGN to deliver voice and multi-media services Add Web 2.0 services from hosting centres Fixed Voice, Broadband, and Multi-Media and Mobile Build a NGN to deliver fixed and mobile voice and multi- media services. Have an access-agnostic architecture Have an integrated services architecture Fixed Voice, Broadband, and Multi-Media and Mobile Build a NGN to deliver fixed and mobile voice and multi- media services. Have an access-agnostic architecture Have an integrated services architecture Soft-switch /SIPSoft-switch / H248IMS

7. 7 TOT’s Future Network METRO LAN WiMax Mobile-IP/ GPRS IMS

8. A practical initial implementation SBC MSAN H.248 NTE Base band POTS Vision Softphone BRAS BGW Internet Backhaul IP Core MGW PSTN Core Session Control Consumer VoIP APP SME VoIP APP Other APP Hosting Centre (IPTV ICT) Voice Soft-switch Service Edge Service Edge Service Node 3rd Party Applications IN ENUM User Data DSLAM Exch RCU MGW Legacy Networks Interworking

9. SBC MSAN NTE Base band POTS Vision Softphone BRAS BGW Internet Backhaul IP Core MGW PSTN Service Edge Service Edge Service Node H.248 Hosting Centre (IPTV ICT) IN ENUM User Data Core Session Control Consumer VoIP APP MobilePSTN 3rd Party Applications Future implementation

10. Access Network Access Node MSAN GE xDSL Street MSAN xDSL FTTN PTP PTMP e.g. GPON Fibre for Enterprise 3G Mobile)/WiMA X Copper for Voice and Data (ADSL) Fibre / Ethernet

11. MSAN 11

12. MINI DSLAM 12

13. Access Network Access Node MSAN GE xDSL Street MSAN xDSL FTTN PTP PTMP e.g. GPON Fibre for Enterprise 3G Mobile)/WiMA X Copper for Voice and Data (ADSL) Fibre / Ethernet

14. Conclusion 14