Microsoft Teams: Use multiple phone lines on Teams mobile [MC1402306]

Message ID: MC1402306

[What and Why]

We are expanding Microsoft Teams Phone capabilities to mobile devices by enabling users to manage and use multiple assigned phone numbers directly within the Teams mobile app. Users will see and manage their assigned phone lines in the Calls app on Teams mobile, allowing them to choose the appropriate number when placing or returning calls. This update provides a more consistent calling experience across devices and helps users who manage multiple roles or regions stay productive without switching devices or workflows.

This message is associated with Microsoft 365 Roadmap ID 565131.

[Rollout Schedule]

• General Availability (Worldwide): We will begin rolling out in late July 2026 and expect to complete by mid-August 2026.

[Impact on Your Organization]

Who is affected:

• Organizations using Teams Phone
• Users who are assigned multiple phone numbers in Teams Phone

Platforms/Services

• Microsoft Teams
• Teams mobile (iOS and Android)

What will happen

• Users will be able to select which phone line to use when placing calls from the dial pad: 

  

• Calls can be returned using a selected phone line directly from call history: 

  

• A unified call history will be available, with the ability to filter by phone line.
• Calling across multiple phone lines will be supported within Teams mobile.
• This capability extends existing Teams Phone multi-line functionality to mobile devices.
• The feature will be available to users who are already configured with multiple phone numbers in Teams Phone.

[Action Required or Recommendations]

No action is required.

After rollout, admins may choose to:

• Review which users require multiple phone numbers.
• Assign and manage phone numbers in the Teams admin center.
• Ensure each assigned number has a valid emergency address configured.
• Confirm compliance with regional telecommunications requirements.

Learn more: (To be updated closer to rollout.) Use the dial pad to make a call in Microsoft Teams | Microsoft Support

[Compliance considerations]

No compliance considerations identified. Review as appropriate for your organization.

Source: Microsoft

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