Take Microsoft Teams deployments to the next level by adding PSTN voice for a truly collaborative experience.

Microsoft Teams has quickly become the defacto choice of unified collaboration software. Many organisations look to Teams to enable their employees to work efficiently from anywhere over video and messaging and now, by adding business voice, users can connect to PSTN services through the Teams app.

Teams is an ecosystem that includes certified handsets as well as MTR meeting rooms. By adding voice to your Teams deployment, you can enable these devices to make standard PSTN calls, with included monthly calling plans.

Voice within Teams, brings your Direct Dial (DDI) number straight to your Teams application. If you are considering migrating from an on-premise PBX to Teams voice, your existing numbers can be ‘ported’ along with it and users can choose to take calls on their desktop Teams client, mobiles Teams client or on a certified Teams handset.

All the features and functions you would expect from a traditional on-prem PBX are available on Teams and users can consume these from anywhere, with a plethora of devices to enhance your calling experience.

Enabling Your Organisation

Microsoft Teams voice enables you to migrate from your traditional on-premise PBX deployment to a cloud based solution within Teams for a cloud based solution with all the business class tools users expect.


Teams is everywhere! Over 270 million active daily users now use Teams as their collaboration tool of choice.

All communications in one tool

By adding Teams voice, you now have one tool for video, messaging, sharing, meeting and now external PSTN calling

Multiple connection options

Connect your Teams tenant to the PSTN with a variety of methods to suit your needs and budget

Join the millions already using Teams for their PSTN needs.

Working collaboratively, means everyone being able to work towards a common goal. Teams already gives users the ability to meet, message and share but now with Teams voice, you can reach your target audience and, crucially, they can reach you, via the PSTN. You can have your advertised DDI number ring directly on your Teams client, either on your desktop computer, mobile device, or Teams certified handset, and you can make and receive calls as you did before.

Choose a PSTN solution that fits with your business

There are three complete Microsoft options to choose from when considering adding PSTN voice to your Teams solution, direct routing, calling plans and operator connect.

  • Calling Plans provides a simple and easy option when considering PSTN. They are provided directly from Microsoft and you simply add them through the Teams Admin Centre, making them a great option for small businesses with simple telephony needs. With Calling Plans you pay a simply monthly fee per user and you get calls to national and mobiles included.
  • Direct Routing provides your business with maximum flexibility by connecting your Teams tenant to a third party PSTN provider. This can be achieved in multiple ways by deploying customer owned Session Border Controllers (SBC) either on-premise or in your cloud, or by connecting to a direct routing as a service (DRaaS) solution.
  • Operator Connect gives you the ability to choose a provider directly from the Teams Admin Centre however, this is not provided by Microsoft as with a calling plan, this is a direct contract between your business and the provider. If your current PSTN provider is listed you can choose to connect with them.

Teams is an open-source ecosystem, with multiple vendors to choose from

Microsoft Teams is as a platform rather than an App. Many elements come together to provide the Teams interface which is why it is such a flexible and powerful solution. Teams telephony is no different.
All businesses have different needs and choosing a one size fits all is not always the best approach. We can help guide you through the many decisions needed when considering PSTN Voice for Teams and find the right fit for your business.

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