As part of Microsoft’s feature parity with Teams Phone extensibility, Microsoft is announcing the enforcement of Phone System license checks for Bot-initiated transfers to Teams users. This current gap in Microsoft systems will be addressed in September 2025.
Microsoft Teams requires that Teams users behind applications such as queue applications require a phone system license and the user to be Enterprise Voice Enabled.
What is the change?
Effective September 30, 2025:
- Teams users will still have the option to transfer calls to other Teams users manually even if they don’t have a PSTN phone system license.
- Bot-initiated transfers and add participant requests to non-phone system enabled users will be blocked.
What do you need to do?
- Review and update any applications that use the transfer and add participant APIs to make sure that they account for the new default behavior.
