Buy Business Voice
With Microsoft 365 Business Voice, you can make and receive calls, use audio conferencing, and set up a call menu system to route customers to the right department. To get started, you need to purchase the Business Voice add-on.
In the Microsoft 365 admin center, go to Billing, and select Purchase services.
Scroll down and choose Add-ons.
Select Microsoft 365 Business Voice.
If you don’t see it, you need to first buy a business subscription that includes Microsoft Teams.
Enter the number of users you want licenses for and select Check out now.
Select Auto-recharge to purchase communication credits if needed and avoid service interruptions.
Communication credits are used for international calls, toll-free numbers, and additional calling minutes.
Verify your Payment method.
Select Place order and Continue.
You’ve successfully added the Business Voice add-on.