1. Telcordia Technologies Proprietary – Internal Use Only This document contains proprietary information that shall be distributed, routed or made available only within Telcordia Technologies, except with written permission of Telcordia Technologies. Integrated IMS Application Services Creation and Execution Platform Pravin Shankar Email: spravin@rutgers.eduspravin@rutgers.edu Ph.D. Candidate, Rutgers University Project Team Hiralal Agarwal Devasis Bassu (mentor) Ashish Jain Intern Presentations, Summer 2005

2. Pravin Shankar - IMS – 2 Overview  Motivation  Project Goals  Architecture and Implementation Details  Prototype Demonstration  Status and Future Work

3. Pravin Shankar - IMS – 3 Motivation  IMS – IP Multimedia Subsystem – a 3GPP/3GPP2 standard – a unified architecture that supports a wide range of IP-based services over both packet- and circuit-switched networks  IMS Services: – controlled by external Application Servers (AS). (e.g. video telephony, Instant Messaging, Gaming) – the number of third party IMS application service providers is expected to grow tremendously – services built upon other services (Service Eco-System)  IMS standardizes enablers not services  Need for a Service Creation Environment IMS Layered Architecture Source: Light Reading Inc., http://www.lightreading.com

4. Pravin Shankar - IMS – 4 Project Goals  Develop a service creation platform for creating, testing, debugging and deploying IMS application services – Built using the Eclipse framework – Current implementation based on SIP Servlet API v1.0 standard (JSR-000116)  Build the Call Notification Service using this platform – Used simulated IMS core network

5. Pravin Shankar - IMS – 5 IMS Service Lifecycle Service ProvisionService Execution

6. Pravin Shankar - IMS – 6 Call Notification Demo sip:alice@hazy sip:bob-work@hazy application server (SIP Servlet RI) presencecall-notification IMS Core Network S-CSCF uses HSS sip:bob-home@hazy Assumption: Bob has subscribed to the Call Notification service. 1. Alice calls Bob at home 2. Home phone rings 4. Temporarily unavailable ! 5. Bob is notified via IM at work 3. Nobody home, times out

7. Pravin Shankar - IMS – 7  Status – Working prototype implementation of Call Notification service using the Service Creation Platform  Future Work – Automated testing of IMS services  Lessons Learnt – SIP and IMS Protocol Stack, Model-based Sw Engg.  Acknowledgement – Devasis Bassu, Hira Agarwal, Ashish Jain Conclusion

8. Pravin Shankar - IMS – 8 Questions?