Dear there, I have a question about session-mode IM over 3GPP IMS. If there are two separated servers located at Application Server in 3GPP IMS Architecture, one is SIP Call Server for advanced call feature processing, the other is IM Server for IM Service processing containing deferred messaging, IM logging processing. As we know, both SIP Call and Session-Mode IM use SIP INVITE for session establishment. So if a client sends a SIP INVITE request for session-mode IM to S-CSCF, how does S-CSCF tell this INVITE is for IM Server not for SIP Call Server and then trigger this request to the right serving server? How does iFC (initial Filter Criteria) set for this need? Or S-CSCF should parse the SDP within INVITE request then know it is for IM session establishment so that forward this request to IM Server? Am I something miss on 3GPP IMS knowledge?
Thanks for your response in advance. BR, Jeffrey %;+H%s%i/`%]'t$u,c0|>w1K8j0T!A+D+|)w$'&,%s*L!A=P$E(O%N)N4&ES%;+H%s$:.e!A(C=P>P74&9+H%s!C This email may contain confidential information. Please do not use or disclose it in any way and delete it if you are not the intended recipient. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
