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<tt>Hello Dmitry,<br>
<br>
What you want to do is called (in SIP) serial forking. Use
failure_route{} to catch the 488 and to add a create a new branch
(with modified body) .<br>
<br>
See: <a class="moz-txt-link-freetext" href="http://www.opensips.org/Documentation/Script-Routes-2-3#toc3">http://www.opensips.org/Documentation/Script-Routes-2-3#toc3</a><br>
<br>
Regards,<br>
</tt>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a>
OpenSIPS Summit 2018
<a class="moz-txt-link-freetext" href="http://www.opensips.org/events/Summit-2018Amsterdam">http://www.opensips.org/events/Summit-2018Amsterdam</a>
</pre>
<div class="moz-cite-prefix">On 01/30/2018 02:56 PM, Dmitry wrote:<br>
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<p class="MsoNormal"><span lang="EN-US">Hello all,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Could you say how can I
re-send INVITE with changed SDP to B-leg after receive 488
from it?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Call flow:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">-> A-leg INVITE<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><- A-leg 100<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">-> B-leg INVITE<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><- B-leg 100<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><- B-leg 488 – I
catch it, and want to send INVITE again with properly SDP<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">-> B-leg ACK<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><-A-leg 488<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">-> B-leg ACK<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks for any advice.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Cheers!<o:p></o:p></span></p>
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