Indirect Presence Publication with the Session Initiation Protocol(SIP)

Document Type Expired Internet-Draft (individual)
Authors Miguel García  , Hannes Tschofenig  , Henning Schulzrinne  , Martin Thomson 
Last updated 2009-10-25
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


A method for indirectly publishing presence information is described. This allows a presentity user agent to publish a URI that can be used by the presence agent to retrieve presence information. A presence agent is then better able to acquire dynamic presence information without relying on the presentity user agent. This also allows a presentity user agent to delegate responsibility for managing changing presence data to the source of that information.


Miguel García (
Hannes Tschofenig (
Henning Schulzrinne (
Martin Thomson (

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