[SIPForum-discussion] One way talk path

[Yevgen Krapiva]

>
> Hi all,
>
> I am new to SIP world. I would like to know what exactly to look for
> 'one way talk path' issues with sip calls.
>
> we have a avaya communication manager -- ses -- alcatel sip
> configuration. If a Digital station (DCP) calls an sip end point on
> Alcatel switch .. the call works fine .. but with the reverse.. there is
> no talk path.
>
> I have the sip call logs for both the calls .. but not able to
> understand ..what exactly should I look for .. in order to find out the
> issue.
>
> Need your expert help.
>
> Thanks!
>
Session is established like:
INVITE --->
                 <---- OK
  ACK ---->
Open RFC3261, somewhere at the beggining you will see illustrated example.
There is also a separate section with examples.
>From my side, I would recommend you to catch the traffic with a sniffer,
then open file in Wireshark. Telephony -> VOIP Calls menu will show you all
that was going on and draw a chart.
Or provide us this file.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sipforum.org/pipermail/discussion/attachments/20090820/2d15e4de/attachment-0002.html>