Subject: [Simple] Possible IM Message solution??

From: a c <[email-masked]>
Date: Fri, 5 Oct 2001 14:54:53 -0700 (PDT)

hello,

 What do you all think about the following:

- IM session established as a regular sip session
- SDP contains m=message line
- SDP also contains a message server line
  ms=x.x.x.x, port (invite,200ok)

- All signalling flows as follows:

	e <---> proxies <---> e

- message as follows:

	e <---> message server <---> e

*  proxy server communicates to messaging server as to
which sessions (ip address/udp-tcp port numbers)
   are active.
 
advantages:

	- CPU utilization ok on proxy
	- IM with sessions
	- can do monitoring on the media server 
          if needed
	- conferencing should work
	- ??

comments?

alex

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