I am looking for a way to troubleshoot issues with TDM (E1) trunks with a provider.
Currently with SIP trunks I am using tcpdump to perform packet captures between our gateways and the SIP providers IPs, capturing traffic on all ports, to include both the SIP messages and the RTP
How can I achieve a similar result on TDM links connected to TDM cards in Asterisk servers, where by I can see the signalling (like the SIP
message) and the audio stream (like the RTP stream) in my packet captures?
If it helps, the end goal is to create something like the packet captures I am making so I can see the control signals and audio streams (in and out) for troubleshooting one way audio issues for example. So, am I sending audio to the TDM provider, are they sending it to me, have we both signalled correctly to start/stop sending audio, etc.
Many thanks, James.