With Microsoft 365 Business Voice

Communicate with anyone, anywhere

Microsoft Teams Phone is a powerful telephone system that serves as 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.


Turn any PC, Mac, or Mobile device into a phone that can use your business phone number

Stay connected in real-time with calling, chat, and meetings in a single app with a reliable, feature rich phone system.

Enterprise-Grade Phone System

Reliable and secure calling with standard phone features to include Voice Mail, Caller ID, Call Menus, Shared Phone Lines, and Emergency Calling.

Calling Plans

Get new phone numbers or migrate existing ones. Make and receive PSTN calls to any number. International plans and toll-free dialling are also available.

Audio Conferencing

Add flexibility to your meetings with a dial-in number that lets you host conference calls with people who don't have Teams or don't have an internet connection.

Our four-phase approach to our Hybrid VOICE Service

Managed Service Flow

This phase of the service portfolio is comprised of planning and design services for telephony and calling which is fundamental to establishing a successful Teams Calling deployment. The scope within this phase is to help you plan and design all elements of the voice implementation and move to Teams. The complexity of Enterprise Voice and telephony makes this a critical phase in successful migration from Legacy or on-premises voice solutions.


  • Teamwork Assessment
  • Telephony planning
  • Network assessment
  • Handset, and headset device strategy
  • Advisory
  • Dial plan development
  • Skype for Business to Teams planning
  • Persona analysis
  • Dial plan and workflow analysis

These are project-based services that focus on lighting up Teams Calling with a direct follow-on from an envisioning engagement to enable Microsoft Teams Phone System and connectivity to PSTN services. These services can range from basic enablement and handset configuration to complex enterprise voice deployments with workflow and dial plan implementation.


  • Network remediation
  • Phone system and calling plan configuration
  • Configuration of call queues and auto attendants
  • Deployment of direct routing
  • Devices - handset/headset sales and deployment
  • Deployment of contact centre solutions
  • Dial plan and call flow configuration
  • Direct routing and calling pilot
  • 3rd party integrations
  • Porting and provisioning numbers

Driving usage is critical in the migration to Modern Communications. The shift in the way people work will require us to guide all generations to adopt new technologies, especially in communications. The scope of this service can range from training on phones and headsets to change management for receptionists using a new attendant console to manage calls managed from a PBX console.


  • Training and adoption services
  • Device deployment
  • Change management services
  • Contact centre and attendant console onboarding

These ongoing engagements are built to provide monitoring, management, reporting, and support of the Microsoft Teams Calling deployment. This service offers an end-to-end approach that supports your calling and voice experience ranging from service desk to service desk support, to complete quality reporting and remediation along with providing dial tone through Direct Routing.


  • Tier 1-4 support
  • Quality reporting, and monitoring
  • Device management
  • SBC management
  • Network and connectivity monitoring
  • Adds, moves, and/or changes

Frequently Asked Questions (FAQ)

Microsoft 365 Business Voice is a cloud-based phone system built for small and medium sized businesses. It enables users to make, receive, and transfer calls to and from landlines and mobile phones on the public switched telephone network (PSTN) in Microsoft Teams.

It’s designed for small and medium businesses using Office 365 or Microsoft 365 that are seeking a modern phone system. Business Voice can be added onto Office 365 or Microsoft 365 subscriptions that include Microsoft Teams; qualifying plans include Office 365 Business Essentials, Business Premium, E1, E3, A3, or A3; Microsoft 365 Business, E3, or A3. You can purchase up to 300 seats of Business Voice. If your company has more than 300 users, we can implement our Enterprise Voice solution for you.

Business Voice includes a phone system, domestic calling plan, and audio conferencing.

A prepaid wallet (known as communications credits) is available for adding toll-free, additional minutes, & other pay-per-minute charges.  

An optional international calling plan that includes 600 minutes/user/month can be purchased as an add-on to Business Voice. 

Businesses operating in the UK and Canada can purchase Business Voice. Over time, Business Voice will be rolled out to additional countries.

Yes, you can transfer your phone numbers from your current service provider to Business Voice. After you port your phone numbers over, Microsoft will become your service provider.

Yes, customers can work with their Microsoft partner to bring their own calling plan. A configuration called allows customers to connect voice trunks directly from their network to Microsoft Teams or interconnect 3rd party telephony entities such as call centers or analog devices. The Microsoft 365 Business Voice (without calling plan) subscription is specifically designed for this situation.

Microsoft 365 Business Voice is experienced through the Microsoft Teams applications. Devices certified for Teams, provides a seamless Teams experience on desk phones, conference phones, and meeting room systems: learn more here. For available devices check out the Microsoft Teams Devices Marketplace. Business Voice works with devices which certified for Skype for Business with features in this list. In 2023, these devices will no longer work with Business Voice.

See how much you can save by making the switch

Use the Business Voice Value Calculator to estimate how much Microsoft 365 Business Voice can help you reduce costs against your current communications solutions.

+44 20 3985 3865

available from 9:30 – 17:30

4 Longwalk Road, Stockley Park, London, UB11 1FE


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