Microsoft 365 Alert : Service degradation – Microsoft Teams – Admins may be unable to set up users for PSTN calling in Microsoft Teams via PowerShell – RESOLVED

08/06/2022 05:48:00 PM (BST)

Microsoft Reference : TM390234  

NHSmail Reference : INC29480582

Issue Status : RESOLVED

Issue Description : Admins may be unable to set up users for PSTN calling in Microsoft Teams via PowerShell.

Scope of impact : Impact may occur for any admin attempting to set up users for PSTN calling in Microsoft Teams via PowerShell.

Final Update : 09/06/2022 10:56:00 AM – Microsoft successfully reverted the offending change to remediate impact. Additionally, they have verified with affected users and by monitoring their service telemetry that this action has resolved the problem. Users may need to reconnect their existing PowerShell sessions to fully restore service.

Root cause : A recent change intended to update Microsoft Teams API infrastructure resulted in impact.

Next steps : Microsoft are investigating why the recent change intended to update Microsoft Teams API infrastructure resulted in impact to prevent this problem from happening again in the future.

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