A new Request for Comments is now available in online RFC libraries.
RFC 5112
Title: The Presence-Specific Static Dictionary for
Signaling Compression (Sigcomp)
Author: M. Garcia-Martin
Status: Standards Track
Date: January 2008
Mailbox: miguel.garcia@nsn.com
Pages: 25
Characters: 67257
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-garcia-simple-presence-dictionary-06.txt
URL: http://www.rfc-editor.org/rfc/rfc5112.txt
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/
Session Description Protocol (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. [STANDARDS TRACK]
This is now a Proposed Standard Protocol.
STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and suggestions
for improvements.Please refer to the current edition of the Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol. Distribution of this memo is unlimited.
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