<div dir="ltr">Hello list,<div><br></div><div>its been about one month for me playing with kamailio and I need some help to sort out a real life situation.</div><div><br></div><div>I followed this guide <a href="https://skalatan.de/en/blog/kamailio-sbc-teams">https://skalatan.de/en/blog/kamailio-sbc-teams</a>; great article, also got some inspiration from here <a href="https://blog.opensips.org/2019/09/16/opensips-as-ms-teams-sbc/">https://blog.opensips.org/2019/09/16/opensips-as-ms-teams-sbc/</a>..articles look very similar.</div><div><br></div><div>I manged to get my calls out to kamailio from TEAMS it works perfectly call gets connected and  codec negotiation is fine, but I am facing issue geting the call inbound to TEAMS.</div><div><br></div><div>My invite looks like this:</div><div><br></div><div>========================</div><div>U <a href="http://217.26.163.205:5060">217.26.163.205:5060</a> -> <a href="http://52.114.75.24:5061">52.114.75.24:5061</a> #22<br>INVITE <a href="http://sip:+37360844269@sip.pstnhub.microsoft.com:5061">sip:+37360844269@sip.pstnhub.microsoft.com:5061</a> SIP/2.0.<br>Record-Route: <sip:sbc.pride.md:5061;transport=tls;lr>.<br>Record-Route: <sip:217.26.163.205:5061;nat=yes;lr>.<br>Via: SIP/2.0/UDP 217.26.163.205;branch=z9hG4bK7838.7417f50ed201fcada9609f5b7c4e520f.0.<br>Via: SIP/2.0/UDP 192.168.169.102:5060;received=46.214.187.67;branch=z9hG4bK80e3f7e5cc50ea11806b6eeeb899592c;rport=5060.<br>From: "+37379844267" <<a href="mailto:sip%3A%2B37379844267@sbc.pride.md">sip:+37379844267@sbc.pride.md</a>>;tag=1604785394.<br>To: "+37360844269" <sip:+37360844269@sip.pstnhub.microsoft.com:5061;user=phone>.<br>Call-ID: <a href="mailto:80E3F7E5-CC50-EA11-8069-6EEEB899592C@192.168.169.102">80E3F7E5-CC50-EA11-8069-6EEEB899592C@192.168.169.102</a>.<br>CSeq: 227 INVITE.<br>sip:+37379844267@192.168.169.102:5060;gr=008A94E3-CA50-EA11-805B-6EEEB899592C;alias=46.214.187.67~5060~1Content-Type: application/sdp.<br>Allow: INVITE, ACK, BYE, CANCEL, INFO, MESSAGE, NOTIFY, OPTIONS, REFER, UPDATE, PRACK.<br>Max-Forwards: 69.<br>User-Agent: SIPPER for PhonerLite.<br>Session-Expires: 1800.<br>Supported: 100rel, replaces, from-change, gruu, timer.<br>P-Preferred-Identity: <<a href="mailto:sip%3A%2B37379844267@sbc.pride.md">sip:+37379844267@sbc.pride.md</a>>.<br>Content-Length:   362.<br>Contact: <sip:+37379844267@sbc.pride.md:5061;user=phone;transport=tls>.<br>.<br>v=0.<br>o=- 2307737351 1 IN IP4 217.26.163.205.<br>s=SIPPER for PhonerLite.<br>c=IN IP4 217.26.163.205.<br>t=0 0.<br>m=audio 36864 RTP/SAVP 8 101.<br>a=rtpmap:8 PCMA/8000.<br>a=rtpmap:101 telephone-event/8000.<br>a=fmtp:101 0-16.<br>a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:owGy5+mMZNyO5+9lFmUUOK3WqpEsxJH0+jtWz<br></div><div><br></div><div>===============================================</div><div><br></div><div>Anybody has a good invite exaple for Teams?</div><div><br></div><div>Or do you see any issue with my invite? I do use :</div><div><br></div><div> record_route_preset("sbc.pride.md:5061;transport=tls","217.26.163.205:5060;nat=yes");<br> add_rr_param(";r2=on");<br></div><div><br></div><div>before sending this out.</div><div><br></div><div>Please let me know if you can help.</div><div><br></div><div>Thanks.</div><div><br></div><div>Vitalie.</div><div><br></div><div><br></div></div>