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I-D ACTION:draft-campbell-simple-im-sessions-00.txt



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	Title		: Instant Message Sessions in SIMPLE
	Author(s)	: B. Campbell, J. Rosenberg
	Filename	: draft-campbell-simple-im-sessions-00.txt
	Pages		: 11
	Date		: 2002-10-28
	
The SIP MESSAGE method is used to send instant messages, where each
message is independent of any other message.  This is often called
pager-mode messaging, due to the fact that this model is similar to
that of most two-way pager devices.  Another model is called session-
mode.  In session-mode, the instant messages are part of a media
session that provides ordering, a security context, and other
functions.  This media session is established using a SIP INVITE,
just as an audio or video session would be established.
This document describes a method of initiating and managing message
sessions using SIP.

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