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How to connect rtp streams with corresponding voip calls?

asked 2020-09-10 10:16:58 +0000

alberion gravatar image

we're troubleshooting voip issues and try to find any pattern. from the telephone>rtp stream menu i can see which streams experience packet loss or high delta but i can't see a phone number like in telephone>voip calls window, and in the voip calls window i cant see which calls experienced issues. how to draw a connection?

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What signalling protocol are we talking about here? And what media session protocol?

Jaap gravatar imageJaap ( 2020-09-10 16:29:39 +0000 )edit

it's sip/sdp + rtp

alberion gravatar imagealberion ( 2020-09-10 17:14:28 +0000 )edit

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answered 2025-11-20 10:12:30 +0000

gielo gravatar image

This is the way I do it. Note this is for SIP calls!!!

In Wireshark select the Telephony TAB, the RTP then RTP streams. Look at the stream that has packet loss and note the two ports used for Source and Destination. In the Display filter type the filter: sdp.media.port==32136 (where the port number is one of the ports associated in step above (stream that has packet loss. I used 32136 as example). Now double click on the listed packet to open it up. Look for the "Generated Call-ID" and apply as a filter (not just Call-ID) This will then show the complete call with SIP/SDP/RTP

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Asked: 2020-09-10 10:16:58 +0000

Seen: 297 times

Last updated: 17 hours ago