To use Direct Routing, you’ll first need to assign the following licenses to a user:
- Microsoft Teams
- Microsoft Teams Phone
- Skype for Business Plan 2
- Optionally, Audio Conferencing, or Audio Conferencing Pay Per Minute
These licenses are including in Microsoft Enterprise E5 (with Teams Phone) and Microsoft Business Voice SKUs.
You can use the Microsoft 365 admin center or PowerShell to assign licenses to users in your organization. You must be a Global admin or User management admin to manage licenses.
After assigning licenses, you will need to wait before assigning numbers to users. Because of the latency between Microsoft 365 and Microsoft Teams, it can take up to 24 hours for a user to be assigned a Calling Plan after you assign a license.