Wireshark-users: Re: [Wireshark-users] Troubleshooting VOIP calls

From: Christopher Maynard <Chris.Maynard@xxxxxxxxx>
Date: Mon, 22 Nov 2010 16:47:51 +0000 (UTC)
Joe Beams <beamsws@...> writes:

> I am attempting to figure out why call quality is soo poor, I have got a
packet capture from our system with 2 calls in it.  I am just not sure exactly
what I am looking at.

Maybe this will help you?: http://wiki.wireshark.org/VoIP_calls

> So, I guess my question is how do I figure out why these values are so high?
Is there any thing else I should look at in wireshark to give me an indicator as
to what is going on?

I'm not that familiar with the VOIP protocols, but I know there are a few
VOIP-related bugs filed in bugzilla (https://bugs.wireshark.org/bugzilla/), at
least one concerning problems when there are multiple calls contained within a
single capture file, so it's possible that the analysis you're looking at is not
quite right.  You might try isolating each call and saving the related packets
to 2 different capture files to see if the analysis is any different.  Other
than that, maybe some of the VOIP experts here have some additional tips for
you.  Good luck.