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Miscellanoues Capabilities Negotiation in the Session Description Protocol (SDP)

Document type: Replaced Internet-Draft (individual)
Document stream: No stream defined
Last updated: 2012-10-10 (latest revision 2012-03-01)
Intended RFC status: Unknown
Other versions: (expired, archived): plain text, pdf, html

Stream State:No stream defined
Document shepherd: No shepherd assigned

IESG State: Replaced by draft-ietf-mmusic-sdp-miscellaneous-caps
Responsible AD: (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found here:


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 Garcia <>
Simo Veikkolainen <>
Robert Gilman <>

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