AT&T Cloud Voice for Microsoft Teams

Simplify your transition to Teams by making voice cloud-simple. Our business-grade global voice and SIP trunking network makes calling and collaboration in Teams easy. 

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What is AT&T Cloud Voice for Microsoft Teams?

A business-grade voice connection for your Microsoft Teams environment

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This cloud-based solution allows your Teams users to easily make and receive highly reliable, business-grade voice calls. We integrate SIP trunking with cloud solutions, and give you a voice connection you can count on, no matter how simple or complex your environment might be.


Manage business calls right from your Microsoft Teams environment

  • Call virtually anywhere

    Your workforce will be able to reach people outside your organization just as easily as your internal contacts.

    Phone calling pictogram
  • Easy to get started

    Using our simplified and flexible set-up with our web-based tools, you can manage your connections which enables you to add new sites and telephone numbers with ease.

  • Round-the-clock support

    When you need us, we’ll be there with carrier-grade, 24/7 technical support.

  • Save time and money

    As a cloud-based solution, you won’t need to invest in extra on-site equipment. Our solution brings together our AT&T network with Microsoft Teams and/or your existing premise PBX.

A better connection to the outside world

Take advantage of these features for your business

Features Details
Phone numbers management You can add new sites and telephone numbers with ease.
Flexible calling plans Whatever you need, we have a calling plan for you; we can bundle minutes of use per seat.
Global PSTN reach With business-class quality voice we route calls reliably and securely.
Managed SBC Management of the session border controller (SBC) is included.
No hardware required No need to deploy any new additional hardware.
Web-based portal You can manage your service 24/7 using our web-based portal. 
Optional services Concierge services and AT&T Consulting options available.


Your team can call and collaborate with your internal and external customers using highly secure, global, business-quality voice. You will have access to the public switched telephone network (PSTN) and the ability to connect your existing private branch exchange (PBX).

No. We don’t want you having to worry about that, so management of the cloud SBC is bundled into the solution.

No matter what your enterprise premise configuration might be, we can help you simplify your onboarding experience and use your existing PBX or other assets you may have.

Our solutions have the built-in flexibility to meet your needs. So, if you are an existing AT&T SIP trunking customer, we can conveniently integrate these services for you. 


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