hi there are two main problems in the conference of the two. One is that my recorder is not having a direct session with caller and callee. The call manger is only having the session with the recording system on remote machine. The call manager invites and sends media to the recorder. Second problem is that it sends the caller rtp on port 4000 and callee rtp on 4002. And in sdp it have only one media line that tell us to capture rtp on port 4000. Regards: Varun Singh