<html><head></head><body><div class="ydp14a718aeyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div dir="ltr" data-setdir="false">Hi,</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I am integrating PBX with Teams via Kamailio</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Call is working but ACK delivery has an issue </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">This is the ACK Kamailio receives from PBX</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I process the ACK with </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><span>handle_ruri_alias();</span><br></div><div dir="ltr" data-setdir="false"><span><br></span></div><div dir="ltr" data-setdir="false"><span>and </span></div><div dir="ltr" data-setdir="false"><span><br></span></div><div dir="ltr" data-setdir="false"><span>record_route_preset(AS per GUIDE LINES)</span><span><br></span></div><div dir="ltr" data-setdir="false"><span><br></span></div><div dir="ltr" data-setdir="false"><span>But this change is not reflected in RELAY </span></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">ACK from PBX </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><div><div>ACK sip:api-du-b-usea.pstnhub.microsoft.com:443;x-i=0c344c6a-cd75-4095-9891-bf9445c28b82;x-c=5691aa770226562db7d3e16ab090e196/s/1/e857255ef2344e03bd1d12e270ef5e6c;</div><div>ias=52.114.132.46~5061~3 SIP/2.0 </div><div>Via: SIP/2.0/UDP PBX_IP:7790;rport;branch=z9hG4bKPjc50440d0-77db-4467-94cb-2f93c4f88538 </div><div>From: "USER" <sip:13300@PBX_IP>;tag=ab87b9b5-eee3-420c-8472-2eec82a769ac </div><div>To: <sip:1508@KAMAILIO_IP>;tag=a2ce378b106949cf8bac8f978bb573fb </div><div>Call-ID: 3dbc6680-fec3-4ba5-8232-6dda8c669bca </div><div>CSeq: 23811 ACK </div><div>Route: <sip:KAMAILIO_IP:7790;lr;ftag=ab87b9b5-eee3-420c-8472-2eec82a769ac> </div><div>Route: <sip:sbc.KAMAILIO_FQDN.com;transport=tls;lr;ftag=ab87b9b5-eee3-420c-8472-2eec82a769ac> </div><div>Route: <sip:sip-du-a-us.pstnhub.microsoft.com:5061;transport=tls;lr> </div><div>Max-Forwards: 70 </div><div>User-Agent: Asterisk </div><div>Content-Length: 0 </div><div>X-Siptrace-Fromip: udp:PBX_IP:7790 </div><div>X-Siptrace-Toip: udp:KAMAILIO_IP:7790 </div><div>X-Siptrace-Time: 1606135546 516717 </div><div>X-Siptrace-Method: ACK </div><div dir="ltr" data-setdir="false">X-Siptrace-Dir: in</div></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><br></div></div></div></body></html>