Exporting/Decoding Call Audio With Wireshark

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I'm trying to use Wireshark to diagnose VoIP quality. I can see the SIP calls just fine but cannot get it to play back the call audio. Does anyone know if it's possible to play the audio from a RingCentral call? It appears to be using the Opus codec and I see no indication that the calls are encrypted but maybe I'm overlooking something.
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tscott16

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Posted 3 months ago

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Chris Rosa

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I’d expect the call to be encrypted. I don’t know for sure tho. I did find this KB article that seems to support that.

https://success.ringcentral.com/artic...
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tscott16

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" If you want to enable Secure Voice for your account, contact RingCentral Support." This seems to imply encryption is opt-in, but I'm not sure.
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Lee, Champion

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I have used Wireshark for the same purpose. Once you save the capture and open it, go to telephony on the menu bar and select VOIP calls. You should see the calls from the capture populate there. Then you can select one and Play Streams. You should be able to hear them. I can on mine. 
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tscott16

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I can see the VoIP calls listed here, including the to/from users and phone numbers, but when I try to Play Streams it just doesn't do anything at all, as if there is no data. If I go to Telephony > RTP > RTP Streams, click Analyze and then Play Stream it says "rtp stream is empty or codec is unsupported".