France Telecom

1. Bridging the Chasm Between Legacy and Next-GenerationNetworksInternet Telephony ConferenceMiami, FloridaFebruary 5th 2003France Telecom R&D: Far ahead and close to you France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

2. Who we are France Telecom • France Telecom • More than 108.4 million clients around the world* • 34.4 Billion € revenues** (40.9% generated outside of France) • France Telecom R&D • More than 3,000 researchers and engineers (130 in the US) • 13 sites across the world • More than 200 new patented inventions every year • Approximately 15 start-ups created * in controlled subsidiaries, at September 30, 2002 ** for the nine months ended September 30, 2002 France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

3. The SIP and Web Services Project • Development of innovative IP-based telecommunications services • At the proof-of-concept stage • No deployment plans yet • Convergence of IP communications with Web Content France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

4. The End User Experience Today • Traditionally segmented silo-type services offering • PSTN services: voice, voice mail… • Mobile Services: voice, voice mail (different), Internet access, e-mail, SMS, MMS • Internet Services: Internet browsing, email, IM • Deployed over a mosaic of access networks • PSTN network (France Telecom) • Mobile Network (GSM - Orange) • Internet Access (Wanadoo) • Results in a fragmented user experience France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

5. The Project Goal • Offer France Telecom end users rich communications services • IP multimedia communications: Voice, Video, Data, Gaming • Event Notification , Instant Messaging and Presence • Web content • Converged and accessed across all communications networks • IP phones • Desktop • Mobile phones, PDA • POTS phones through PSTN gateway France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

6. The Project Goal • Provide the end-user a federated offer of services • The service is deployed on IP core network • The service can reach/be accessed by the user from different access networks • The user experience is now unified across so far fragmented networks France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

7. The Project Objectives • Go beyond PSTN Services • Consumer market oriented • Personalization • Convergence of voice, video, data & multi-access • Change of media within a session • Device specific treatment of a request • Combine SIP and Web services • Intermediation • Orchestration and brokerage of services • Reusable building blocks France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

8. Technical Background • IP Communications • Using SIP: Session Initiation Protocol • For Voice, Video, Data, Instant Messaging and Presence • Extendable to non-IP devices through PSTN gateway • Web Services • Bundle and orchestration of web services • Offers the ability to differentiate communications services France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

9. Technical Background • Use and combine these technologies to create and deploy innovative services • Innovate rather than duplicate PSTN features • SIP: for multimedia session establishment and event notification • Web Services (SOAP, UDDI, WSDL) to provide the content • VXML (then SALT) to allow speech integration in Web-based application France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

10. Technical Background • SIP components • SIP User Agents: • Fixed-line IP phones • Soft-phones • PDA: radio access emulated over WLAN • SIP Registrar, Proxy Server, Presence Server • SIP Application Server • B2BUA for third party call control France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

11. Technical Background • Web Services Component • Use off-the shelves internet-hosted web services • Free WS – implies no guarantee of service • Commercial WS – QoS, high availability • Accessed through SOAP protocol • Speech integration • Automatic Speech Recognition • Text-To-Speech • VXML 2.0 France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

12. Technical Background • Java application developed on SIP application server and web server • Integration with Microsoft Exchange Server • No development on the terminal side France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

13. Network Architecture France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

14. Conclusion • SIP is a protocol of choice to create converged IP services • Voice, Video, Data, Event Notification, IM, Presence, Third Party Call Control • Web Services allow for easy and swift service creation • Reducing overall cost and time to market • Allowing to create application on demand • Enbling the use hosted services on the internet with minimum CAPEX • The emergence and leveraging of these new technologies, through development of innovative services, could be the trigger for faster deployment and adoptionof MoIP services France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida

15. Conclusion • Stabilization of the SIP protocol and extensions • Different versions implemented create interoperability issues • Deployment issues • Nat/firewal traversal • Service Management • Consolidated accounting information • Fault Management • QOS guarantee to the end user • Service Provisioning • Web Services immaturity France Télécom R&D – February 5th 2003 Internet Telephony Conference – Miami, Florida