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Microsoft Teams External Voice

woman talking on headset

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 Favorites

    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 & Intl. 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.

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 replacement

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.


Learn More


Microsoft Teams External Voice Datasheet

White Paper

How to Completely Modernize Your Voice Services with Microsoft Teams


Utilizing Microsoft Teams for External Voice