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<p>Hello,</p>
<p>what do you mean with:</p>
<p>"Both SIP trunks are IP registration only"</p>
<p>Does it mean that you do not know the IPs upfront (they are not
static values, they can change)? So the trunk sends REGISTER
requests in order to let the proxy know where to send traffic to
it?</p>
<p>If you know the IP addresses upfront, then dispatcher should help
(like the others recommended).</p>
<p>Use ds_select_domain() to pick up round-robin sip-server2x, then
use script operations to add the number in front of domain $rd and
then to update the user part $rU<br>
</p>
<p>If it is the case with registrations, then let us know and we can
provide hints how to solve that one as well.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div class="moz-cite-prefix">On 23.05.20 23:33, christian (cx labs)
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAJ8meWn2yFT8g4cKVO1jeXYioeij8-D4Yw2SqqH_QrGsgqG80w@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Hi,
<div><br>
</div>
<div>I'm trying to set up a Kamailio server as a proxy to
forward SIP messages between two trunks, where I manipulate
only the INVITE in the following manner:</div>
<div><br>
</div>
<div>incoming call:</div>
<div>INVITE +4969123456@server1</div>
<div><br>
</div>
<div>outgoing call:</div>
<div>round robin to</div>
<div>INVITE user@4969123456-sip-server2a</div>
<div>INVITE user@4969123456-sip-server2b<br>
</div>
<div>INVITE user@4969123456-sip-server2c<br>
</div>
<div><br>
</div>
<div>Can anyone point me in the right direction? Both SIP trunks
are IP registration only. Also, I am aware how strange this
is, but the upstream service has decided to interpret SIP in a
novel way.</div>
<div><br>
</div>
<div>Cheers,</div>
<div>Chris</div>
</div>
<br>
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</pre>
</blockquote>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
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Funding: <a class="moz-txt-link-freetext" href="https://www.paypal.me/dcmierla">https://www.paypal.me/dcmierla</a></pre>
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