Post on 29-Jan-2016
France Télécom R&D – February 5th 2003Internet Telephony Conference – Miami, Florida
Bridging the Chasm BetweenBridging the Chasm Between Legacy and Next-Generation Legacy and Next-Generation
NetworksNetworks
Internet Telephony ConferenceInternet Telephony ConferenceMiami, FloridaMiami, Florida
February 5th 2003February 5th 2003
France Telecom R&D: Far ahead and close to youFrance Telecom R&D: Far ahead and close to you
France Télécom R&D – February 5th 2003Internet Telephony Conference – Miami, Florida
France Telecom
Who we are
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 2003Internet Telephony Conference – Miami, Florida
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 2003Internet Telephony Conference – Miami, Florida
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 2003Internet Telephony Conference – Miami, Florida
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 2003Internet Telephony Conference – Miami, Florida
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 2003Internet Telephony Conference – Miami, Florida
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 2003Internet Telephony Conference – Miami, Florida
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 2003Internet Telephony Conference – Miami, Florida
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 2003Internet Telephony Conference – Miami, Florida
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 2003Internet Telephony Conference – Miami, Florida
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 2003Internet Telephony Conference – Miami, Florida
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 2003Internet Telephony Conference – Miami, Florida
Network Architecture
Proxy SIP
Proxy SIP
Application Server
SIP User
VRU
Web App server
3. SIP
3’. SIP
2. SIP
2’. SIP
7. SIP
6. HTTP
6’. Web pageRedirect
SIP
Calendaring Service
1.SOAP
4.SOAP
5.SOAP
Maps/Directions Service
Traffic Service
7’. SIP
Buddy
1 2 3
4 5 6
7 8 9
* 8 #
SD
DB
France Télécom R&D – February 5th 2003Internet Telephony Conference – Miami, Florida
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 adoption of MoIP services
France Télécom R&D – February 5th 2003Internet Telephony Conference – Miami, Florida
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