I have a basic question on rtp streams synchronization. a RTP relay server which relay media between 2 sources. How can these streams be synched to the same logical session in the server, not based on the ip/port they use for sending (becasue it is not pre-defined and can be changed)? I thought SSRC could be used but each side sends its own SSRC in the rtp packet and it is not pre-defined in SDP offer answer. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20110523/11534e46/attachment.html>