1.Fire Up kali
2. Open Terminal and type wireshark
3. Now all you need to do is go to the menu bar, select “Telephony” and the “VoIP Calls”:
4. Okay, a list of calls from the packet capture will show up. Pick the one you want to listen to, in this sample the first one is the only one that really has a conversation:
5. Okay, easy peasy, just select the call you want, click “Player” then “Decode”:
6. The player screen shows up and shows the Waveforms of the conversation. You will have two, one for each side of the call. You can listen to each side individually, or if you tick both check boxes you can listen to the conversation as it plays out:
That’s it, if the VoIP conversation is in a protocol that WireShark understands, and is not encrypted, you can very simply isolate the call and listen to it via WireShark.
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