Preeti Gopalan wrote:
>How can I view the Q931 and H225 messages? on screen all I see is what is
>int he attachment here .
Normally H.225/H.245 decoding is working automatically with Ethereal 0.9.15.
However you may need to configure Ethereal to handle TCP desegmentation:
Edit/Preferences.../Protocols/TCP/Allow subdissector to desegment TCP streams (x) checked
Edit/Preferences.../protocols/H225/Reassemble H.225 over TCP (x) checked
Edit/Preferences.../protocols/TPKT/Desegment all TPKT messages spanning multiple TCP segments (x) checked
There could also be some kind of port number conflict with another protocol, or some other problem.
Unfortunately I cannot see why you don't seem to get the decoding to work.
Can you send a sample capture of the packet?
You could also try to to load the rtp_example.raw.gz from the Ethreal site. It contains an example VoIP call with H.225, RTP etc.
http://www.ethereal.com/sample/