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PW ISDN Training

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Transcript

  • 1.
    • ITM 547 - VoIP
    • Graduate Projects and Seminar
    • SIP Speech Phone
    • Sai Nithin Singh C.
    © 2005 Illinois Institute of Technology Advisor : Prof. Carol Davids
  • 2. What is SIP Speech Phone?
    • SIP User Agent ?
    • SIP Service ?
    • Translator ?
    It can be all of these!
  • 3. The SIP Speech Phone VOICE TEXT VOICE TEXT TEXT VOICE SIP Proxy SIP Speech Phone Text Environment Audio Environment
  • 4. The SIP Speech Phone Where do we push it? – Towards the UA or Proxy? UA 1 UA 2 SIP Proxy SIP Speech Phone SIP Speech Phone Media Signaling
  • 5. SIP Speech Phone : As a Peer-to-Peer UA SIP Speech Phone SIP Speech Phone Media Signaling
  • 6. SIP Speech Phone : As a Peer-to-Peer UA
    • Definition : Intelligent end-points capable of talking to one another.
    • SIP Speech Phone can support this if its stack is modified.
    • Presence is already incorporated.
    • But standards are pushing towards the next stages – B2BUA / 3PCC.
  • 7. SIP Speech Phone : As a B2BUA UA 1 UA 2 SIP Speech Phone Media Signaling
  • 8. SIP Speech Phone : As a B2BUA
    • Definition : Logical entity which can act as a “man-in-the-middle”. UAS and UAC at the same time.
    • If offered as a service SIP Speech Phone will act as a B2BUA maintaining 2 independent dialogs.
    • But this would burden the service providers servers, since every session needs 2 media engines running.
  • 9. SIP Speech Phone : As a 3PCC UA 1 UA 2 SIP Proxy Media Signaling SIP Speech Phone
  • 10. SIP Speech Phone : As a 3PCC
    • Definition : An entity capable of initiating and controlling calls between 2 UA.
    • If offered as a service SIP Speech Phone can be modified to act as a 3PCC.
    • The JAIN SIP stack API allows for easy creation of SIP messages and SDP creation and manipulation.
  • 11. SIP Speech Phone : As an IMS Application Courtesy : www.lightreading.com
  • 12. Interesting Information
    • Microsoft Portrait : Supports .NET, SIP, ILC (Internet Locator Service)
    • SIP Speech Phone inter-operates with MS portrait
  • 13. Interesting Information
    • Skype Live Translation
    • Humans translate your conversation.
    • Final goal is what we have proven.
    • Most Fortune 500 companies use this facility.
    • Currently offers language translation.
  • 14. Some notable features of SIP Speech Phone
    • SIP Speech Phone works with Microsoft Portrait and Windows Messenger 4.6.
    • Presence is still an issue.
    • SIP Speech Phone inter-operates with no issues with other SIP user agents including SIP Communicator, XTen Lite.
    • Last but no way the least – a log of all conversations with time stamps is stored.
  • 15. Future Paths
    • Integration with Asterisk.
    • Testing with Advanced Codec's (G.729, GSM) - Tested G.723 – 6.4 Kbps
    • Solving NAT issues.
    • Conference capability.
    • Hardware Requirement and Evaluation
    • Creation of Service for Web 2.0
  • 16. Thank you! Questions?
  • 17. SIP Speech Phone as a Service SIP Speech Phone Hearing Impaired Hearing Enabled Soft / Hard Phone
  • 18. SIP Speech Phone : As a Peer-to-Peer UA