I-D ACTION:draft-garcia-simple-presence-dictionary-06.txt

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	Title		: The Presence-Specific Static Dictionary for Signaling Compression (Sigcomp)
	Author(s)	: M. Garcia-Martin
	Filename	: draft-garcia-simple-presence-dictionary-06.txt
	Pages		: 25
	Date		: 2007-8-8

The Session Initiation Protocol (SIP) is a text-based protocol for
   initiating and managing communication sessions.  The protocol is
   extended by the SIP-events notification framework to provide
   subscriptions and notifications of SIP events.  One example of such
   event notification mechanism is presence, which is expressed in XML
   documents called presence documents.  SIP can be compressed by using
   Signaling Compression (SigComp), which is enhanced by using the SIP/
   SDP dictionary to achieve better compression rates.  However, the
   SIP/SDP dictionary is not able to increase the compression factor of
   (typically lengthy) presence documents.  This memo defines the
   presence-specific static dictionary that SigComp can use in order to
   compress presence documents to achieve higher efficiency.  The
   dictionary is compression algorithm independent.

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