How to Listen to VoIP Conversations with Wireshark without Capturing the Call Setup

Sometime when performing a packet capture, you may come across some VoIP conversations. If the initial call setup is not in this capture, subsequent voice packets will be labeled in such a way that it makes it difficult to decode the VoIP conversation. What follows is a tutorial to get around this problem.



2 thoughts on “How to Listen to VoIP Conversations with Wireshark without Capturing the Call Setup”

  • I have a Cisco skinny call that wireshark was treating as UDP instead of RTP. This method worked for it was well, even though I had call set-up info in the capture. thanks.

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