Miscellaneous Capabilities Negotiation in the Session Description Protocol (SDP)

Document Type Replaced Internet-Draft (individual)
Authors Miguel García  , Simo Veikkolainen  , Robert Gilman 
Last updated 2009-07-08
Replaced by draft-ietf-mmusic-sdp-misc-cap
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Expired & archived
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


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 a number of miscellaneous SDP capabilities. In particular, this memo provides a mechanism to negotiate media titles ("i=" line for each media), connection data ("c=" line), and media bandwidth ("b=" line).


Miguel García (miguel.a.garcia@ericsson.com)
Simo Veikkolainen (simo.veikkolainen@nokia.com)
Robert Gilman (bob_gilman@comcast.net)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)