Yes, MESSAGE can be used to send IM without initiating a 'session' first
via INVITE/OK/ACK.
You may want to read RFC 3428 (see section 2 for scope of applicability
where there is a short discussion on possibilities of usage
wrt pager mode and/or session mode)
regds
arjun
--
Arjun Roychowdhury @ Hughes Software Systems
11717 Exploration Lane, Germantown MD 20876
(O): 301 212 7860 (M): 240 997 [EMAIL PROTECTED]
"Papadopoulos, Leo" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
03/18/2003 04:42 PM
To: [EMAIL PROTECTED]
cc:
Subject: [Sip-implementors] MESSAGE method inside an INVITE session.
Dear Implementors,
When using Microsoft Messenger for IM, it first sets up a SIP session
using
INVITE and then sends MESSAGE methods only within this SIP session.
Call-id's are the same for all methods thoughout this session. My
understanding of the MESSAGE method was that you would just send MESSAGE
methods on the fly without first having to establish a SIP session using
INVITE. Can anyone clarify this or refer me to a draft?
Leo P.
________________________________________
Leo Papadopoulos
IPC Information Systems, Inc.
VP Systems & Architecture
777 Commerce Drive
Fairfield, CT 06432-5500
E-Mail: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
Web Page: http://www.ipc.com
Yahoo IM: leopapadopoulos
IPC Information Systems, Inc.
The specialist that financial institutions depend on for world class
trading
floor solutions
_______________________________________________
Sip-implementors mailing list
[EMAIL PROTECTED]
http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
_______________________________________________
Sip-implementors mailing list
[EMAIL PROTECTED]
http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
