Hi Will,
It turns out that there is no signalling information present in the capture file. The capture file contains just voice packets. So, you have to tell Unsniff explictly what ports are used by RTP. In your capture file, ports 19450 -> 29710 are used.
Use the following steps to correctly deal with this.
- Open Unsniff
- Select Plugins->Manage Access Points
- Click on UDP, then click on \"New UDP Access Point\"
- Enter 19450 for the port, Type \"RTP\" for the protocol.
- Click OK
- Click OK to close the Access Point manager
Now import your capture file.
Switch over to the \"User Objects\" tab.
You can see the calls, Click on \"Play\" to hear the call, or \"Save\" to save as WAV file.
I was able to play back the test file without problems. I also sent you the saved WAV file.
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Next, we can see how to script this whole thing.
Regards,
Vivek Rajan