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<div class="moz-cite-prefix">On 15.06.2021 08:57, Miha via Users
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:5eb20915-78bc-7f51-e1ba-7609f4f6ceaa@softnet.si"><font
face="Calibri Light">when call is not pickup on teams and just
canceled I get 603 Declined which opensips send it further to
SBC (our main sbc). When we get back ACK and from SBC, there is
wrong RURI and opensips does not relay this ACK to MS teams.</font></blockquote>
<p><font face="monospace">Hi Miha,</font></p>
<p><font face="monospace">I have stopped reading after this point.
On a negative reply, there is no concept such as "relay this ACK
to MS teams". The negative ACK is produced hop-by-hop, there is
no need to wait for an original ACK to be produced by UAC and
carried end-to-end, as I expect OpenSIPS to _immediately_
generate and reply with ACK to MST once it received that 603
reply. And in parallel with producing the ACK, OpenSIPS will
also relay the 603 to SBC side.<br>
</font></p>
<p><font face="monospace">Do your SIP traces confirm the flow I
described above? Could you share a .pcap with me if not?
Thanks!<br>
</font></p>
<p><font face="monospace">Best,<br>
</font></p>
<pre class="moz-signature" cols="72">--
Liviu Chircu
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/liviuchircu">www.twitter.com/liviuchircu</a> | <a class="moz-txt-link-abbreviated" href="http://www.opensips-solutions.com">www.opensips-solutions.com</a>
OpenSIPS Summit 2021 Distributed | <a class="moz-txt-link-abbreviated" href="http://www.opensips.org/events">www.opensips.org/events</a></pre>
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