Ethereal-users: Re: [Ethereal-users] RTP to wave format coversion.

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From: "Martin Regner" <martin.regner@xxxxxxxxx>
Date: Fri, 23 May 2003 05:45:49 +0100
Jacob Poulose wrote:
> is there any software/plugins available for converting
>RTP(G711a-law) to wav/mp3/ra files?


The RTP-analysis functionality in Ethereal (Tools/Statistics/RTP Analysis...) can be used to convert G.711 A-law (PCMA, payload
type 8) and G.711 U-law (PCMU, payload type 0) RTP streams to au-format (sun audio format).
Then there are a lot of external programs that can be used to convert au-format to wav and other formats.

There is a sample RTP capture in the following message:
http://www.ethereal.com/lists/ethereal-dev/200303/msg00049.html

If you have the H.323-plugin installed (www.voice2sniff.org, unfortunately only for Windows) you will see H.323 signalling and RTP decoded automatically, otherwise you may have to mark one of the UDP packets and use Tools/Decode As... and
select RTP as protocol as described in FAQ 5.24 http://www.ethereal.com/faq.html#q5.24

Then after that you can mark one of the RTP packets and select Tools/Statistics/RTP Analysis...