Just before we start, make sure you have the following enabled to auto classify (decode) UDP as RTP when using Wireshark.
In Wireshark, select "Analyse" tab, then "Enabled Protocols" then search rtp and ensure all check boxes are checked., then OK.
Skinny is a proprietary Cisco Telephony protocol. The Skinny protocol is associated with TCP port 2000. Skinny is only the Signalling, the voice is still carried by RTP. So if you want to listen to the RTP you need to select the rtp packets from within Wireshark. Select "Telephony" Tab then "RTP" then the required stream you want to listen to. Then play
https://ask.wireshark.org/question/15...
Have you enabled
RTP over UDPin theRTPdecode?Yes. RTP over UDP is enabled but when I am trying decode SKINNY into RTP everytime I am receiving TCP, not UDP. "Telephony -> RTP -> Stream Analysis" is not active. What problem it could be? Thank you!
IP Phone to IP Phone Where in the diagram are you making the capture?
Between two subnets inside one network.