Ethereal-dev: [Ethereal-dev] Fwd: couple of issues with T38 support in current SVN builds

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From: Mike Oliveras <mike.oliveras@xxxxxxxxx>
Date: Sat, 4 Feb 2006 11:50:54 -0500
I have been trying out the additional t.38 fax support in the current
SVN builds - first of all it is a really great feature!  I did notice
a couple of issues; hopefully they can be fixed before the next
release.

The attatched trace shows an H323 call through a Session Border
Controller, so there are two H323 legs.  There are RTP (G.729) packets
exchanged before the call transitions to T.38.  I see a few froblems
as follows -

1. Some RTP packets (209.58.84.42 --> 209.58.84.99) are displayed as
RTP in the packet list pane, however they are dissected incorrectly as
T.38 packets in the packet details pane.

2. When I use the Statistics->Voip Calls option, I see three sessions
- the two H323 call legs and one T.38 Media only flow.  If I Graph the
T.38 flow I only see a couple fax messages, however I see all of the
fax messages when I graph one of the H323 calls.

3. Also in the Statistics->Voip Calls option, The Stop Time does not
appear to be correct for the T38 flow.. I have other captures that
sometimes show extremely long stop times for the T38 flow.

I would be happy to test any fixes or provide any more info if nedded.

Best Regards,

Mike Oliveras

Attachment: rtp.JPG
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Attachment: t38-fax.cap
Description: Binary data