Microsoft 365 Alert – Service Degradation – Microsoft Teams – Users may see a greyed out ‘hold’ button in 1:1 calls using the Microsoft Teams desktop and web clients – RESOLVED

Announcements Arpan Das

06/04/2026 08:59:00 AM

NHSmail Reference: INC46790599

Microsoft Reference: TM1269735

Issue Status: RESOLVED

Issue Description: Users may see a greyed out ‘hold’ button in 1:1 calls using the Microsoft Teams desktop and web clients.

More info: Impact is specific to users that have already placed a call on ‘hold’ and ‘resumed’ that call, subsequent hold attempts may fail.

Final Update: 22/04/2026 08:25:00 AM–Microsoft has confirmed that the fix has completed deploying to all environments and validated that this issue has been remediated via service telemetry.

Scope of impact: Any user attempting to place a call on for a second time from the Microsoft Teams desktop or web clients may be affected.

Root cause: A regression introduced within a recent client update is resulting in impact.

Next Steps: Microsoft are continuing their analysis of the impacting code change to better understand the underlying cause of impact and prevent similar regressions in the future.