Miscellaneous Capabilities Negotiation in the Session Description Protocol (SDP), September 2013
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- M. Garcia-Martin
- mmusic (rai)
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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).
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.