<div dir="ltr">Also, you might want to check out this discussion from just a few days ago with a fellow comrade about a similar MS Teams problem:<div><br></div><div><a href="https://lists.kamailio.org/pipermail/sr-users/2020-April/108868.html">https://lists.kamailio.org/pipermail/sr-users/2020-April/108868.html</a> <br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 14, 2020 at 4:23 PM Sergiu Pojoga <<a href="mailto:pojogas@gmail.com">pojogas@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Well... most likely you didn't fix it, at least not properly. There's no such requirement to have a single RR in the 200 OK, especially only the one from the sender's original invite.<div>By this logic, Kamailio can't insert it's own RR to keep itself in the call's path. I can assure you that's not the case in reality.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 14, 2020 at 3:12 PM Nasida Yuriy <<a href="mailto:nasida@live.ru" target="_blank">nasida@live.ru</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<span>Yes, sure, need to fix Record-Route. The question was how exactly :)<br>
</span><span>Well. I just fixed it by the way. 200 OK had to have only one record-route (which MS sent in initial invite). Otherwise MS ignore it without any response.</span>
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<div id="gmail-m_4754845163384090236gmail-m_2005434601293032074divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>От:</b> sr-users <<a href="mailto:sr-users-bounces@lists.kamailio.org" target="_blank">sr-users-bounces@lists.kamailio.org</a>> от имени Ovidiu Sas <<a href="mailto:osas@voipembedded.com" target="_blank">osas@voipembedded.com</a>><br>
<b>Отправлено:</b> 14 апреля 2020 г. 20:32<br>
<b>Кому:</b> Kamailio (SER) - Users Mailing List <<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a>><br>
<b>Тема:</b> Re: [SR-Users] kamailio integration with MS teams.</font>
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<div>The instructions are pretty clear in the sense that you need to fix<br>
the Record-Route header.<br>
You don't need to touch the Contact header for in-dialog requests/replies.<br>
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Regards,<br>
Ovidiu Sas<br>
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On Tue, Apr 14, 2020 at 12:19 PM Nasida Yuriy <<a href="mailto:nasida@live.ru" target="_blank">nasida@live.ru</a>> wrote:<br>
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> Hi guys,<br>
><br>
><br>
> Do you have some expirience with kamailio integration with MS teams ?<br>
><br>
><br>
> I follow the instructon from here<br>
> <a href="https://skalatan.de/en/blog/kamailio-sbc-teams" target="_blank">https://skalatan.de/en/blog/kamailio-sbc-teams</a><br>
><br>
> TLS part is configured correctly. I also got OPTIONS pings working between MS teams and kamailio by following of this instruction. That is very good.<br>
><br>
> But... There is issues with outbound calls from MS teams to kamailo.<br>
><br>
><br>
> MS side send INVITE, kamailio responds with 180 and 200 OK, but looks like MS ignores us. I know that I probably should use record_route_preset function here to modify Record-Route headers to satisfy MS wishes.<br>
><br>
> But nothing helps. I also tried to modify contact header in 200 OK like it was done for OPTIONS - no luck.<br>
><br>
> Anyone has a working example of kamailio files for MS team ?<br>
> Or at least sucessful pcap with them.<br>
><br>
> I can be wrong but looks like MS doesn't respect RFC at all.<br>
><br>
><br>
> Thanks.<br>
><br>
><br>
><br>
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> Regards,<br>
> Team lead<br>
><br>
> _______________________________________________<br>
> Kamailio (SER) - Users Mailing List<br>
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-- <br>
VoIP Embedded, Inc.<br>
<a href="http://www.voipembedded.com" target="_blank">http://www.voipembedded.com</a><br>
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