Session Initiation Protocol Extension for Partial Notification of Presence Information
RFC 5263, “Session Initiation Protocol Extension for Partial Notification of Presence Information”, is a Proposed Standard document published in September 2008 by M. Lonnfors, J. Costa-Requena, E. Leppanen, H. Khartabil. It has since been updated by RFC 8996. The canonical text is published by the RFC Editor.
Abstract
By default, presence delivered using the presence event package for the Session Initiation Protocol (SIP) is represented in the Presence Information Data Format (PIDF). A PIDF document contains a set of elements, each representing a different aspect of the presence being reported. When any subset of the elements change, even just a single element, a new document containing the full set of elements is delivered. This memo defines an extension allowing delivery of only the presence data that has actually changed. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 5263 is hosted at rfc-editor.org. Available in TXT,HTML.
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