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[Sip] I-D ACTION:draft-ietf-sip-message-03.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Session Initiation Protocol Working Group of the IETF.

	Title		: Session Initiation Protocol Extension for Instant 
                          Messaging
	Author(s)	: B. Campbell, J. Rosenberg
	Filename	: draft-ietf-sip-message-03.txt
	Pages		: 19
	Date		: 18-Apr-02
	
Instant Messageing (IM) refers to the transfer of messages between
users in near real-time.  These messages are usually, but not
required to be, short.  IMs are often used in a conversational mode,
that is, the transfer of messages back and forth is fast enough for
participants to maintain an interactive conversation.
The MESSAGE method is an extension to the Session Initation Protocol
(SIP) that allows the transfer of Instant Messages.  MESSAGE requests
carry the content in the form of MIME body parts.  MESSAGE requests
do not themselves initiate a SIP dialog; under normal usage each
Instant Message stands alone, much like pager messages.  MESSAGE
requests may be sent in the context of a dialog initiated by some
other SIP request.
Since the MESSAGE request is an extension to SIP it inherits all the
request routing and security features of that protocol.

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