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<p class="MsoNormal">Are you using Teams Direct Routing? This morning it does appear that Teams is not cleanly terminating calls. Here’s an example response from Teams to a SIP BYE message sent<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New";color:black">148249222: Aug 30 15:09:39.986: //12929228/0B60EED0B3ED/CUBE_VT/SIP/Msg/ccsipDisplayMsg:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New";color:black">Received: SIP TLS message from 52.114.132.46:5061 to [REDACTED]
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New";color:black;background:yellow;mso-highlight:yellow">SIP/2.0 400 Bad Request</span><span style="font-size:9.0pt;font-family:"Courier New";color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New";color:black">FROM: "[REDACTED]"sip:+[REDACTED]@[REDACTED];tag=59E32C35-1282<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New";color:black">TO:
<a href="sip:+[REDACTED]@sip.pstnhub.microsoft.com">sip:+[REDACTED]@sip.pstnhub.microsoft.com</a>;tag=42b61721ea1d4686bf22e4b2f03384d0<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New";color:black">CSEQ: 102 BYE<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New";color:black">CALL-ID:
<a href="mailto:B629C8A-467E11EE-B3F38F31-9397CD96@TeamsMADSBC.wisconsin.gov">B629C8A-467E11EE-B3F38F31-9397CD96@[REDACTED]</a><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New";color:black">VIA: SIP/2.0/TLS [REDACTED];branch=z9hG4bK3B67395A8<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New";color:black;background:yellow;mso-highlight:yellow">REASON: Q.850;cause=95;text="9e76dc15-53f0-4eb9-82b0-215b7e029e87;Expected a Protocol of Reason header
as a token, got '\5cx17\5cx03\5cx03\5cx03n\5cx8BC^YB C;8t\5cx96C^]BYE <a href="sip:api-du-a-usea.pstnhub.microsoft.com:443;x-i=9e76dc15-53f0-4eb9-82b0-215b7e029e87;x-c=4c4164749a1c57e5958505fe4de5d0cb/s/1/dd4c">
sip:api-du-a-usea.pstnhub.microsoft.com:443;x-i=9e76dc15-53f0-4eb9-82b0-215b7e029e87;x-c=4c4164749a1c57e5958505fe4de5d0cb/s/1/dd4c</a>"</span><span style="font-size:9.0pt;font-family:"Courier New";color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New";color:black">CONTENT-LENGTH: 0<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New";color:black">ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New";color:black">SERVER: Microsoft.PSTNHub.SIPProxy v.2023.8.28.1 i.USEA.10<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Nothing has changed with what we are sending to MS in the SIP Reason header and I also see plenty of calls today that do terminate cleanly.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Outages <outages-bounces@outages.org> <b>On Behalf Of
</b>Pete Eisengrein via Outages<br>
<b>Sent:</b> Wednesday, August 30, 2023 10:32 AM<br>
<b>To:</b> outages@voiceops.org<br>
<b>Subject:</b> [outages] Microsoft Teams outage?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p><strong><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:white;background:#FF6600">CAUTION: This email originated from outside the organization.
</span></strong><br>
<strong><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:white;background:#FF6600">Do not click links or open attachments unless you recognize the sender and know the content is safe.</span></strong><o:p></o:p></p>
<p><o:p> </o:p></p>
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<p class="MsoNormal">We are experiencing an issue with Microsoft this morning, where they initially connect but when we send a re-INVITE, Microsoft responds with a 100 Trying but then never updates the session and the call is left with dead air and eventually
the caller hangs up.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Waiting on Microsoft support.....<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks<o:p></o:p></p>
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