RTSP handshake and SDP

As per engineering, you made the initial investigation and consulted previous threads related to our problem and mentioned that our SDP is just fine, the source codec is H264/AAC. The “audio track index 0 not found” is an indication of a possible handshake issue with RTSP. It could be a problem in the RTSP source. You have requested for an access to our camera, and get the RTSP link so you can take a look. My question is, Are you saying you would like to see a network capture of the RTSP handshaking when I issue the pullstream command, e.g. Wireshark? Also, what’s the SDP?