Subject: [Simple] Sender identification in MSRP

From: Heil Franca Marcelo <[email-masked]>
Date: Fri, 23 Jan 2004 16:20:27 +0100

Hello,

Considering a multiparty session-based messaging using a tightly-coupled conferencing model, where a central conference server maintains MSRP sessions (setup via SIP) with each participant and forwards the data received in one MSRP session from a participant to other participants:

Is there a way for a participant on the conference to find out who was the original sender of the data it receives in the MSRP session with the conference server? (e. g. as it is posssible via the CNAME/SSRC/CSRC fields in RTCP/RTP for media channels using RTP transport)
Is this a topic to be handled in the MSRP draft? Would a new header in the MSRP SEND command be necessary for that? 

Marcelo