Microsoft 365 Alert – Service Degradation – Microsoft Teams – Users may not see the caller ID for incoming Public Switched Telephone Network (PSTN) calls – RESOLVED

Announcements Sourav Nandi

13/12/2023 09:00:00 AM

NHSMail Reference: INC40271662

Microsoft Reference: TM697769

Issue Status: RESOLVED

Issue Description: Users may not see the caller ID for incoming Public Switched Telephone Network (PSTN) calls.

More info: This issue may impact both the desktop client and web app of Microsoft Teams.

Final Update: 23/01/2024 08:45:00 AM – Microsoft confirmed the fix has finished deploying and impact is no longer occurring after a period of monitoring.

Scope of impact: This issue may potentially affect any user receiving incoming PSTN calls.

Root cause: A recent configuration change for caller ID in Microsoft Teams is preventing caller ID from showing for incoming PSTN calls.

Next steps: Microsoft are further reviewing the recent configuration change for caller ID and the circumstances that lead to impact, so that they can identify next steps that’ll help them further improve the reliability and resiliency of their service.