1. May 25, 2004 Final Presentation Communication Systems Design 2004 Ajeet Kumar Nankani Joakim Andersson Ning Zhou Rajkrishna Srinivasan Workshet Lamenew

2. May 25, 2004 Final Presentation Communication Systems Design 2004 Attractive Feature Advanced GSM GPRS test bed ready for academic and research community

3. May 25, 2004 Final Presentation Communication Systems Design 2004 Agenda Introduction Video Presentation GPRS Implementation E1 over IP Solution VoIP-SIP Integration Conclusion Future Work Q & A

4. May 25, 2004 Final Presentation Communication Systems Design 2004 Introduction GSM GPRS test bed KPG 2 project initiation Project goals Efforts to meet the goals Supporters (Ericsson, Axerra, Swefour,...)

5. May 25, 2004 Final Presentation Communication Systems Design 2004 System Architecture E1 BTS E1 BSC MSC GSM/GPRS Core Network HLR VLR CGSN FW/NAT VoIP/SIP Gateway IP Network

6. May 25, 2004 Final Presentation Communication Systems Design 2004 THE VIDEO

7. May 25, 2004 Final Presentation Communication Systems Design 2004 GPRS Implementation - Joakim Andersson

8. May 25, 2004 Final Presentation Communication Systems Design 2004 Changes to the GSM network

9. May 25, 2004 Final Presentation Communication Systems Design 2004 Hardware of the CGSN25

10. May 25, 2004 Final Presentation Communication Systems Design 2004 Interfaces of the CGSN

11. May 25, 2004 Final Presentation Communication Systems Design 2004 GPRS Implementation Access Point Name (APN) Packet Data Protocol (PDP)

12. May 25, 2004 Final Presentation Communication Systems Design 2004 Access Point Name IP address for APN resolving IP address for mobile station Routing method

13. May 25, 2004 Final Presentation Communication Systems Design 2004 Packet Data Protocol PDP Context Activation In MS, SGSN, GGSN APN Requested IP address Requested Quality of Service

14. May 25, 2004 Final Presentation Communication Systems Design 2004 GPRS Benefits Controlled environment Hands on experience

15. May 25, 2004 Final Presentation Communication Systems Design 2004 E1 over IP Solution - Ning Zhou

16. May 25, 2004 Final Presentation Communication Systems Design 2004 E1 Line E1 BTS E1 BSC MSC GSM/GPRS Core Network HLR VLR CGSN FW/NAT VoIP/SIP Gateway IP Network

17. May 25, 2004 Final Presentation Communication Systems Design 2004 E1 BTS E1 BSC MSC GSM/GPRS Core Network HLR VLR CGSN FW/NAT VoIP/SIP Gateway IP Network E1 over IP

18. May 25, 2004 Final Presentation Communication Systems Design 2004 E1 over IP Solution –Optical Fiber –Re-configure AXN Boxes 32 timeslots, 2*2.048Mbps 16 timeslots

19. May 25, 2004 Final Presentation Communication Systems Design 2004 Coverage Extension Forum building Kista IP student accommodation Electrum building Part of Kista Galleria

20. May 25, 2004 Final Presentation Communication Systems Design 2004 VoIP – SIP Integration with MSC - Ajeet Nankani

21. May 25, 2004 Final Presentation Communication Systems Design 2004 VoIP - SIP Why VoIP – SIP Integration? Increases calling options Increases reachability SIP Environment –SIP clients –SIP servers –SIP gateway

22. May 25, 2004 Final Presentation Communication Systems Design 2004 VoIP-SIP Architecture E1 BTS E1 BSC MSC GSM/GPRS Core Network HLR VLR CGSN FW/NAT VoIP/SIP Gateway SIP Client SIP Proxy Server SIP Redirect Server SIP Registrar Server IP Network

23. May 25, 2004 Final Presentation Communication Systems Design 2004 SIP - Gateway Cooperation with Team13 SIP gateway – AXD 320

24. May 25, 2004 Final Presentation Communication Systems Design 2004 Conclusion - Rajkrishna Srinivasan

25. May 25, 2004 Final Presentation Communication Systems Design 2004 E1 BTS E1 BSC MSC GSM/GPRS Core Network HLR VLR CGSN FW/NAT VoIP/SIP Gateway IP Network AXD 320 VOIP Status AXD320  MSC Integration

26. May 25, 2004 Final Presentation Communication Systems Design 2004 Conclusion Successful GSM/GPRS over IP Current Status of GSM/GPRS

27. May 25, 2004 Final Presentation Communication Systems Design 2004 Future Work Extensive testing Extending coverage Security aspects KTH phone system Innovative ideas !!!

28. May 25, 2004 Final Presentation Communication Systems Design 2004 Questions and Comments Email csd2004-team16@csd.ssvl.kth.se Website http://csd.ssvl.kth.se/~csd2004-team16