What is Microsoft 365 Business Voice?

Microsoft 365 Business Voice makes it easy for small and medium organizations to turn Microsoft Teams into a powerful and flexible telephone system. It's a replacement for traditional telephony providers and in-house phone systems that can be difficult and costly to manage. You can set up both toll and toll-free numbers, call menus to help callers get to the right department, audio conferencing so you can host meetings with anyone, and more. You can even give people their own phone numbers so they can get calls directly.

Business Voice does all of this by wrapping Microsoft 365 Phone System features into an easy-to-manage bundle. You don't need to worry about choosing the right plan or feature; they're all there and set up for you. Because Phone System is a part of Teams, you can turn any PC, Mac, or mobile device into a phone that can use your Business Voice phone number.

Here's a short video that gives you an overview of Business Voice (2:13 minutes):

Business Voice is right for you if your organization has 300 or fewer people and you have one the following Microsoft 365 subscriptions:

  • Microsoft 365 Business Basic
  • Microsoft 365 Business Standard
  • Microsoft 365 Business Premium
  • Microsoft 365 F1
  • Microsoft 365 F3
  • Office 365 F3
  • Microsoft and Office 365 Enterprise E1 or E3
  • Microsoft 365 and Office 365 Education A1 or A3
  • Microsoft 365 and Office 365 Government G1 or G3
  • Microsoft 365 Nonprofit Business Basic
  • Microsoft 365 Nonprofit Business Standard
  • Microsoft 365 and Office 365 Nonprofit E1 or E3

Business Voice is available in over 70 countries and regions. Whether you can set up Business Voice on your own, transfer phone numbers to Microsoft 365, and manage your phone numbers in Microsoft 365, depends on the country or region in which your Microsoft 365 tenant is located. For more information, check out Country and region availability for Business Voice.


Microsoft Teams and Business Voice only work when your users' mailboxes are located in Microsoft 365. They don't support mailboxes located on on-premises Exchange Server.

When you buy Business Voice, you get the following features and more:

Phone System Standard phone features include Voice Mail, Caller ID, call menus, shared phone lines, and emergency calling.
Domestic Calling Calls within your country or region are free. International plans and toll-free dialing are also available.
Audio Conferencing Lets you host conference calls with people who don't have Teams or don't have an internet connection.

You can see everything that's included with Business Voice by visiting Microsoft 365 Business Voice service description.