Re: Save RTP Stream for both sides Conversation

["Ryan \"Izzy\" Bales" <izzy84075 () gmail com>]

There might be a way to do this from within Wireshark itself, but the idea
that comes to mind would be to take the two separate audio files, and import
both into a single Audacity project(Or a similar program), and then you can
line them up and export them as a single audio file.

I seem to recall having the same problem a while back, but I was mostly
looking for other problems with my VoIP setup, so I paid it very little
attention.

On Thu, Sep 1, 2011 at 02:14, firstname lastname <
psykosonik_frequenz () yahoo com> wrote:

> Hi,
>
> I have a network capture file consisting of a conversation made using VoIP.
> However, when I go to telephony -> VoIP Calls, it doesn't detect any VoIP
> Calls. My guess is that since it didn't capture the call setup messages as
> well, so no VoIP Calls are detected.
>
> So, in order to listen to the conversation, I decided to listen to the RTP
> Stream.
>
> No frames were detected as RTP. There were many UDP frames. Assuming that
> RTP packets got detected as UDP.
>
> I selected one UDP Packet among the huge array of many consecutive UDP
> packets. Right clicked on it, selected "Decode As RTP".
>
> Now, these frames appeared as RTP in the network capture file.
>
> Next, I wanted to save this RTP Conversation. I followed this approach:
>
> Telephony -> RTP -> Show All Streams
>
> It showed two streams.
>
> Between Party A and Party B
> Between Party B and Party A
>
> each of these streams have only "one way conversation" saved in them.
>
> To save the payload, I selected one stream, clicked on Analyze and in the
> new pop up window, clicked, on Save Payload (with raw and forward selected).
>
> The format selected was .ul.
>
> I used SoX to convert this to a wav format.
>
> sox test.ul test.wav
>
> Now when I play this media file using Windows Media Player, only one side
> conversation is played. Which means I can hear only Party A talking.
>
> Next, I selected the second stream, between Party B and A, this time
> around, following the same steps as above to save the conversation. I was
> able to listen to Party B's conversation.
>
> My question is, how do I save the streams in such a way that I can listen
> to the conversation of both the parties in the same file?
>
> I tried selecting both the streams at once and followed the above approach.
> It by default saved the conversation only for the first source in the list.
>
> Thanks.
> Regards,
> NeonFlash
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