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RTP Clock Source Signalling

Document type: Replaced Internet-Draft (individual)
Document stream: No stream defined
Last updated: 2012-10-11 (latest revision 2012-06-05)
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-avtcore-clksrc
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This Internet-Draft is no longer active.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:


NTP timestamps are used by several RTP protocols for synchronisation and statistical measurement. This memo specificies SDP signalling identifying NTP timestamp clock sources and SDP signalling identifying the media clock sources in a multimedia session.


Aidan Williams <>
Kevin Gross <>
Ray van Brandenburg <>
Hans Stokking <>

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