[SR-Users] kamailio integration with MS teams.

[Sergiu Pojoga]

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:

https://lists.kamailio.org/pipermail/sr-users/2020-April/108868.html

On Tue, Apr 14, 2020 at 4:23 PM Sergiu Pojoga <pojogas at gmail.com> wrote:

> 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.
> 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.
>
> On Tue, Apr 14, 2020 at 3:12 PM Nasida Yuriy <nasida at live.ru> wrote:
>
>> Yes, sure, need to fix Record-Route. The question was how exactly :)
>> 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.
>>
>>
>>
>> ------------------------------
>> *От:* sr-users <sr-users-bounces at lists.kamailio.org> от имени Ovidiu Sas
>> <osas at voipembedded.com>
>> *Отправлено:* 14 апреля 2020 г. 20:32
>> *Кому:* Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
>> *Тема:* Re: [SR-Users] kamailio integration with MS teams.
>>
>> The instructions are pretty clear in the sense that you need to fix
>> the Record-Route header.
>> You don't need to touch the Contact header for in-dialog requests/replies.
>>
>> Regards,
>> Ovidiu Sas
>>
>>
>> On Tue, Apr 14, 2020 at 12:19 PM Nasida Yuriy <nasida at live.ru> wrote:
>> >
>> > Hi guys,
>> >
>> >
>> > Do you have some expirience with kamailio integration with MS teams ?
>> >
>> >
>> > I follow the instructon from here
>> > https://skalatan.de/en/blog/kamailio-sbc-teams
>> >
>> > 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.
>> >
>> >  But... There is issues with outbound calls from MS teams to kamailo.
>> >
>> >
>> > 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.
>> >
>> > But nothing helps. I also tried to modify contact header in 200 OK like
>> it was done for OPTIONS - no luck.
>> >
>> > Anyone has a working example of kamailio files for MS team ?
>> > Or at least sucessful pcap with them.
>> >
>> > I can be wrong but looks like MS doesn't respect RFC at all.
>> >
>> >
>> > Thanks.
>> >
>> >
>> >
>> >
>> > Regards,
>> > Team lead
>> >
>> > _______________________________________________
>> > Kamailio (SER) - Users Mailing List
>> > sr-users at lists.kamailio.org
>> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
>>
>>
>> --
>> VoIP Embedded, Inc.
>> http://www.voipembedded.com
>>
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>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>> _______________________________________________
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>>
>
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