Summary
- Microsoft has paused automatic updates for Teams app version 1449/1.0.94.2026220406 on Teams phone and Common Area Phone devices.
- The affected build disables Advanced Calling on CAP devices, which can reduce calling functionality for impacted phones.
- Devices already on this version will remain impacted until a fixed build is released or a mitigation is applied.
- Automatic updates are paused only; admins can still manually push this version through Teams admin center if needed.
- No immediate Microsoft action is required from admins, but affected tenants may need to apply a workaround to restore Advanced Calling.
Primary Service: Teams
Admin Impact: Low
User Impact: Medium
Release Start: 28 Sept 2026
Release End: 28 Sept 2026
Services: Teams, Teams UC
Category: Stay informed
Tags: User Adoption
History
9/28/2026 Item Added to Message Center
Microsoft Message
We have paused automatic app updates for Microsoft Teams app version 1449/1.0.94.2026220406 on Phone devices. We identified an issue in this app version that disables Advanced Calling on CAP devices, resulting in reduced calling functionality.
To minimize customer impact, devices that have not yet received this update will remain on their current Teams app version until a corrected build is available.
Rollout schedule
Global: This automatic update pause is currently active.
Impact on your organization
Who is affected
- Organizations using Phone devices.
- Phone devices running or targeting Teams app version 1449/1.0.94.2026220406.
Platforms and services
- Microsoft Teams
- Teams phones
- Common Area Phone (CAP) devices
What will happen
- On Phone devices updated to Teams app version 1449/1.0.94.2026220406, Advanced Calling is disabled.
- Automatic updates to Teams app version 1449/1.0.94.2026220406 have been paused to prevent additional devices from being affected.
- Devices that have already received this app version will remain affected until a fixed version is released or a workaround is applied.
- Only automatic updates are paused. Administrators can still manually update devices to this version through the Teams admin center.
Action required and recommendations
No immediate action is required. This pause is applied by Microsoft.
If your organization has devices already running Teams app version 1449/1.0.94.2026220406 and Advanced Calling functionality is needed, either of the following mitigations can restore Advanced Calling:
- Deploy a Teams admin center configuration profile with Advanced Calling enabled to affected devices and then re-sync the devices.
- If you have Teams Shared Devices (TSD) licenses, assign an IP Phone policy with the sign-in mode set to User sign-in for the affected accounts.
A permanent fix is currently in development. Automatic updates will resume after the corrected build has been validated and released. We will update this post when the fix becomes available.
Compliance considerations
No compliance considerations identified. Review as appropriate for your organization.