Title: Users may not have seen the caller ID for incoming Public Switched Telephone Network (PSTN) calls
User impact: Users may not have seen the caller ID for incoming PSTN calls.
More info: This issue may have impacted both the desktop client and web app of Microsoft Teams.
As a workaround, affected users were able to migrate to the new Microsoft Teams as this only affected the old version.
Final status: We’ve confirmed the fix has finished deploying and impact is no longer occurring after a period of monitoring.
Scope of impact: This issue may have potentially affected any user who received incoming PSTN calls.
Start time: Friday, December 1, 2023, at 8:16 AM UTC
End time: Thursday, January 18, 2024, at 9:17 PM UTC
Root cause: A recent configuration change for caller ID in Microsoft Teams was inadvertently preventing caller IDs from showing for incoming PSTN calls.
Next steps:
– We’re further reviewing the recent configuration change for caller ID and the circumstances that lead to impact, so that we can identify next steps that’ll help us further improve the reliability and resiliency of our service.
This is the final update of the event
