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Hello,<br>
<br>
is the firewall doing SIP ALG?<br>
<br>
Can you get a SIP network trace on UA? If yes, compare it with the
one captured on server.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 06/01/16 01:50, Daniel W. Graham
wrote:<br>
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<p class="MsoNormal">Setup is -<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">2 port ATA <> FIREWALL <>
KAMAILIO / RTPPROXY <> ASTERISK<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">If I have a single port in use behind the
firewall, all NAT functions work properly and media is relayed
through rtpproxy.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">If I have both ports in use behind the
firewall, when outbound calls from UA are placed there is two
way audio on both calls. However if inbound calls are placed
to UA, the first call works, second call only has outbound
audio.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Different SIP URI is used for each port.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">If the firewall is eliminated everything
works fine.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Anyone have an idea how to troubleshoot or
what could be missing? I have done packet captures on both the
UA side and Kamailio side, and I see two RTP flows (rtp ports
match on both sides as well) despite lack of inbound audio on
the second call.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">If I can post anything config wise that
would help let me know.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-Dan<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<pre wrap="">_______________________________________________
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<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a>
Book: SIP Routing With Kamailio - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
<a class="moz-txt-link-freetext" href="http://miconda.eu">http://miconda.eu</a></pre>
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