[SR-Users] kamailio integration with MS teams.

[Yuriy Nasida]

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.
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