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Microsoft Teams External Voice

Unify All Your Voice Needs in One Application

Choose between two options to leverage Microsoft 365 Teams for external calling.

Microsoft 365 Teams has become a reliable and integral part of internal communications for hundreds of thousands of companies. And with Microsoft Teams External Voice from MetTel, making external calls via Teams has never been easier—for IT and end users.

Microsoft Teams External Voice from MetTel allows you to replace your PBX and make Microsoft Teams your primary source for enabling outbound calling to Public Switched Telephone Network (PSTN) lines. Both versions of the solution, Direct Routing and Operator Connect, provide a feature-rich solution with simplified voice management and a unified user experience.

Connect with a Teams expert to learn which version of Microsoft Teams External Voice from MetTel is right for your organization.

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  • From CapEx to OpEx

    Migrate away from equipment-heavy investments—scale up or down with a cloud-based infrastructure and predictable costs.

  • Management

    MetTel manages your calling services, saving your team the hassles and costs of equipment purchasing and management.

  • Hold On to Handsets

    Have users partial to desktop and conference room phones? No problem. Poly CCX series phones are designed specifically for Microsoft Teams Voice.

  • Keep Your Favorite Features

    Just because you’re moving on from your legacy voice system doesn’t mean you have to say goodbye to call recording, auto-attendant, and real-time call analytics.

  • Domestic & International Calling

    Users can call anywhere within the United States and Canada, with Europe, Asia, South America, and SMS added soon.

  • See Satisfied End Users

    Gone are the days of switching between collaboration tools or using personal devices for external calls. Plus, users can keep their current phone numbers.

Microsoft Teams External Voice Options

Direct Routing

Make PSTN calls right from your Microsoft Teams. MetTel does the heavy lifting—we’ll port and provision all your numbers so you can utilize the Microsoft Cloud and Teams as your unified voice solution. MetTel manages the PSTN calling services and dedicated session border controllers (SBCs), allowing you to eliminate hardware purchase and management.

Operator Connect

Take your Teams voice integration to the next level with a Microsoft-certified solution. MetTel’s Operator Connect provides even easier deployment that leverages API integration with Microsoft, offloading provisioning from your internal IT team. Additionally, SBCs hosted and managed by Microsoft deliver premium support and reliability for both IT admins and end-users.

Ready to completely cut ties with traditional phone lines?

POTS Transformation from MetTel gives you the power to completely cut ties with your legacy phone systems, even with the services you had previously left on plain old telephone services (POTS) for emergency services. MetTel manages the entirety of the migration process, from deployment through replacement.

Learn more about POTS Transformation

Modernize Your Voice Services

With the demand for digital workplace solutions on the rise, why not unify all your digital workplace communication needs in one collaboration tool? Complete the form to speak to one of our experts.


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Microsoft Teams External Voice

White Paper

How to Completely Modernize Your Voice Services with Microsoft Teams


Utilizing Microsoft Teams for External Voice