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Please post a link with your network drawing. Your description is
unclear.<br>
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<div class="moz-cite-prefix">Il 05/02/2014 20.19, Tony Ward ha
scritto:<br>
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<p class="MsoNormal">Hello, <o:p></o:p></p>
<p class="MsoNormal">I currently have a media server behind a
nat firewall with calls delivered via a PSTN Trunk. I want to
add a 2nd media server and route calls to either depending
upon the dialed number. I’ve been trying to do this using
drouting in opensips 1.10.0, but cannot get a configuration
that works. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I started by generating the ‘trunking
script’ using make menuconfig, and populated mysql to accept
my PSTN trunk and route to my media server. When an incoming
call arrives, it is directed to opensips, and forwarded to
media server with a record-route header containing my private
ip. This confuses my PSTN partner and we are unable to
establish the rtp stream.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">After reviewing the mailing lists I tried
setting alias and advertised_address=my public ip. Now when
an incoming call arrives it is directed to opensips and
forwarded to the media server with a record-route header
containing my public ip. Call setup completes successfully.
Call teardown initiated from PSTN trunk completes
successfully. Call teardown initiated from media server fails
because the media servers sends BYE to the public IP, and the
NAT router does not know what to do with it (destination
unreachable).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It seems as though the invite to my media
server needs to have a record-route header with my private ip,
while the ok response back to my PSTN provider needs to have a
record-route header with my public ip. Is this the right
approach? I’ve briefly toyed with rtpproxy and also b2bua
without much luck, and was hoping this simpler solution could
be made to work.<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">Tony<o:p></o:p></p>
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<pre wrap="">_______________________________________________
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