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2013 Edition, September 2013

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Miscellaneous Capabilities Negotiation in the Session Description Protocol (SDP)

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Product Details:

  • Revision: 2013 Edition, September 2013
  • Published Date: September 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: Internet Engineering Task Force (IETF)
  • Page Count: 21
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

The Session Description Protocol (SDP) has been extended with a capability negotiation mechanism framework that allows the endpoints to negotiate transport protocols and attributes. This framework has been extended with a media capabilities negotiation mechanism that allows endpoints to negotiate additional media-related capabilities. This negotiation is embedded into the widely used SDP offer/answer procedures.

This memo extends the SDP capability negotiation framework to allow endpoints to negotiate three additional SDP capabilities. In particular, this memo provides a mechanism to negotiate bandwidth ("b=" line), connection data ("c=" line), and session or media titles ("i=" line for each session or media)