[outages] Microsoft Teams outage?

[Hunt, Fred A - DOA]

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

148249222: Aug 30 15:09:39.986: //12929228/0B60EED0B3ED/CUBE_VT/SIP/Msg/ccsipDisplayMsg:
Received: SIP TLS message from 52.114.132.46:5061 to [REDACTED]
SIP/2.0 400 Bad Request
FROM: "[REDACTED]"sip:+[REDACTED]@[REDACTED];tag=59E32C35-1282
TO: sip:+[REDACTED]@sip.pstnhub.microsoft.com;tag=42b61721ea1d4686bf22e4b2f03384d0
CSEQ: 102 BYE
CALL-ID: B629C8A-467E11EE-B3F38F31-9397CD96@[REDACTED]<mailto:B629C8A-467E11EE-B3F38F31-9397CD96 at TeamsMADSBC.wisconsin.gov>
VIA: SIP/2.0/TLS [REDACTED];branch=z9hG4bK3B67395A8
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 sip:api-du-a-usea.pstnhub.microsoft.com:443;x-i=9e76dc15-53f0-4eb9-82b0-215b7e029e87;x-c=4c4164749a1c57e5958505fe4de5d0cb/s/1/dd4c"
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2023.8.28.1 i.USEA.10

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.

From: Outages <outages-bounces at outages.org> On Behalf Of Pete Eisengrein via Outages
Sent: Wednesday, August 30, 2023 10:32 AM
To: outages at voiceops.org
Subject: [outages] Microsoft Teams outage?


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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.

Waiting on Microsoft support.....

Thanks
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