Miscellanoues Capabilities Negotiation in the Session Description Protocol (SDP)

Document Type Replaced Internet-Draft (individual)
Authors Miguel García  , Simo Veikkolainen  , Robert Gilman 
Last updated 2012-10-10 (latest revision 2012-03-01)
Replaced by RFC 7006
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Expired & archived
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IESG IESG state Replaced by draft-ietf-mmusic-sdp-miscellaneous-caps
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This Internet-Draft is no longer active.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 three additional SDP capabilities. In particular, this memo provides a mechanism to negotiate bandwidth ('b=' line), connection data ('c=' line), and titles ('i=' line for each session or media).


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.)