Microsoft Teams mobile now supports multiple phone lines for Teams Phone users

Microsoft rolled out support for multiple phone lines in the Teams mobile app on iOS and Android, according to Microsoft 365 Message Center item MC1402306. Worldwide general availability began in late July 2026, and the rollout was expected to finish by the end of August, according to the message's August 18 update. Users who already have more than one Teams Phone number can see and manage those lines in the Calls app, choose which line to dial out from, return calls on a selected line, and filter a combined call history by line.

This closes a gap for people who answer more than one number, such as a direct line plus a department or location line, and who rely on their phone when away from a desk. Previously, that kind of setup often pushed businesses toward a separate mobile app or a second device. The feature applies only to users already configured with multiple numbers in Teams Phone.

Microsoft says no admin action is required. If your staff handle several numbers, review who actually needs them and assign them in the Teams admin center. Microsoft's guidance also calls for confirming that each assigned number has a valid emergency address, which matters for 911 location accuracy, and that your setup meets regional telecom requirements.

If you buy Teams calling through a carrier or Operator Connect partner, ask them whether their numbering and licensing support multiple lines per user, and whether additional numbers carry extra monthly charges.