1. IMS – The future of Fixed Mobile Convergence EduCause Walt Magnussen Ph.D. 12 October, 2010

2. Current Situation Landline –Fixed device (with the exception of nomadic VoIP devices –Dedicated telephone number –Voice Mail often with Unified messaging –Usually not location aware Cellular Phone –Mobile device –Dedicated telephone number –Voice Mail without Unified messaging –Location aware

3. Early attempts at FMC PBX control – trombone trunked SS7 gateways (Tango networks) Carrier provided

4. Cellular networks working through the generations 1G – Analog Voice only 2G – GSM, CDMA, up to 20 Kbps Voice and Data 2.5G CDMA2000, EDGE, GPRS up to 384 Kbps. Web browsing, MMDS, location services 3.0G CDMA 2000 and 3000, UMTS up to 3.1 Mbps. Full motion video, streamed video, 3D gaming

5. 4G networking WiMax – Sprint Limited markets now LTE – AT&Tand Verizon Wireless begin 2010 Bandwidth 100+ Mpbs Applications - All of the above Plus: High quality video streaming High quality video conferencing High quality Voice Over IP 4G is built upon IMS architecture

6. IP Multimedia Subsystem Developed by 3GPPP Uses SIP signaling FMC is based upon concept of Home and Visiting networks

7. IMS Advantages Application Integration QoS Authentication sharing

8. IMS Architecture

9. IMS Nodes SIP Proxies –S-CSCF – Network Controlling Proxy –P-CSCF – Border SIP Proxy –I-CSCF - Interrogating SIP Proxy Location nodes –HSS Function of HLR and VLR –SLF – Maps current IP address to User/Application.

10. IMS nodes continued Gateway nodes –BGCF – Border Gateway Control Function –MGCF – Media Gateway Control Function –MGW – Media Gateway –SGW – Signaling Gateway Media Control –MRFC – Media Control –MRFP – Media Proxy

11. IMS nodes continued Application Servers (can either be home or visiting network –SIP AS –OSA-CSC –IM-SSF

12. Examples of Applications Carrier –GPS Directions –On line games –Video on Demand University –Blackboard access –Emergency Notification –Library and other controlled access systems –VoIP over campus WiFi

13. Integration of Systems Campus Presence Server with HSS Campus VoIP Proxy with Wireless network –One number dialing –Integration of Voice Mail Systems Direct campus access to billing systems Negotiating QoS

14. Preparing your campus for IMS Consider DAS system (if appropriate) Student/Faculty discount programs with carriers Understand the architecture and ready applications for access

15. The future of Emergency Communications FCC Initiatives –CSRIC - Traffic Prioritization, CAP and other working groups –ERIC – Public private integration of 700 MhZ LTE services ESI Net initiatives- –It’s more than 911 –Campuses will connect –It will probably be IPV6 only

16. TAMU ITEC Projects NSF GOALI solicitation Proposing IU-CRC March of 2011 Network project with Verizon Wireless Hope to start in June of 2010 Stay tuned for more information

17. Contact info and Questions? Telecom@tamu.edu 979-845-5588