Transcript SIP-5 - TMCnet

Bridging the Chasm Between
Legacy and Next-Generation
Networks
Internet Telephony Conference
Miami, Florida
February 5th 2003
France Telecom R&D: Far ahead and close to you
France Télécom R&D – February 5th 2003
Internet Telephony Conference – Miami, Florida
Who we are
France Telecom
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France Telecom
 More than 108.4 million clients around the world*
 34.4 Billion € revenues** (40.9% generated outside of France)
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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
The SIP and Web Services Project
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Development of innovative IP-based telecommunications
services
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At the proof-of-concept stage
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No deployment plans yet
Convergence of IP communications with Web Content
France Télécom R&D – February 5th 2003
Internet Telephony Conference – Miami, Florida
The End User Experience Today
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Traditionally segmented silo-type services offering
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PSTN services: voice, voice mail…
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Mobile Services: voice, voice mail (different), Internet access, e-mail, SMS, MMS
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Internet Services: Internet browsing, email, IM
Deployed over a mosaic of access networks
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PSTN network (France Telecom)
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Mobile Network (GSM - Orange)
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Internet Access (Wanadoo)
Results in a fragmented user experience
France Télécom R&D – February 5th 2003
Internet Telephony Conference – Miami, Florida
The Project Goal
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Offer France Telecom end users rich communications services
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IP multimedia communications: Voice, Video, Data, Gaming
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Event Notification , Instant Messaging and Presence
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Web content
Converged and accessed across all communications networks
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IP phones
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Desktop
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Mobile phones, PDA
 POTS phones through PSTN gateway
France Télécom R&D – February 5th 2003
Internet 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
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The user experience is now unified across so far fragmented networks
France Télécom R&D – February 5th 2003
Internet Telephony Conference – Miami, Florida
The Project Objectives
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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
Technical Background
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IP Communications
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Using SIP: Session Initiation Protocol
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For Voice, Video, Data, Instant Messaging and Presence
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Extendable to non-IP devices through PSTN gateway
Web Services
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Bundle and orchestration of web services
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Offers the ability to differentiate communications services
France Télécom R&D – February 5th 2003
Internet Telephony Conference – Miami, Florida
Technical Background
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Use and combine these technologies to create and
deploy innovative services
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Innovate rather than duplicate PSTN features
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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
Technical Background
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SIP components
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SIP User Agents:
 Fixed-line IP phones
 Soft-phones
 PDA: radio access emulated over WLAN
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SIP Registrar, Proxy Server, Presence Server
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SIP Application Server
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B2BUA for third party call control
France Télécom R&D – February 5th 2003
Internet Telephony Conference – Miami, Florida
Technical Background
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Web Services Component
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Use off-the shelves internet-hosted web services
 Free WS – implies no guarantee of service
 Commercial WS –
QoS, high availability
 Accessed through SOAP protocol
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Speech integration
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Automatic Speech Recognition
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Text-To-Speech
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VXML 2.0
France Télécom R&D – February 5th 2003
Internet Telephony Conference – Miami, Florida
Technical Background
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Java application developed on SIP application server
and web server
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Integration with Microsoft Exchange Server
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No development on the terminal side
France Télécom R&D – February 5th 2003
Internet Telephony Conference – Miami, Florida
Network Architecture
SIP User
Buddy
2’.
SIP
1
4
2
5
3
6
7
8
9
*
8
#
SD
7’. SIP
6.
HTTP
Redirect
SIP
2. SIP
7. SIP
Web App
server
6’.
Web
page
Calendaring
Service
1.SOAP
4.SOAP
Proxy
SIP
Proxy
SIP
Application
Server
Maps/Directions
Service
5.SOAP
3. SIP
3’. SIP
DB
Traffic Service
VRU
France Télécom R&D – February 5th 2003
Internet Telephony Conference – Miami, Florida
Conclusion
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SIP is a protocol of choice to create converged IP services
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Voice, Video, Data, Event Notification, IM, Presence, Third Party Call Control
Web Services allow for easy and swift service creation
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Reducing overall cost and time to market
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Allowing to create application on demand
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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 2003
Internet Telephony Conference – Miami, Florida
Conclusion
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Stabilization of the SIP protocol and extensions
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Different versions implemented create interoperability issues
Deployment issues
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Nat/firewal traversal
 Service Management
 Consolidated accounting information
 Fault Management
 QOS guarantee to the end user
 Service Provisioning
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Web Services immaturity
France Télécom R&D – February 5th 2003
Internet Telephony Conference – Miami, Florida