01Home02Services03About us04Pricing05Vacancies06Contact
Telephony & VoIP

Business calling via Microsoft Teams: how does it work?

20 October 2026 · 5 min read

Calling with a fixed business number from Microsoft Teams? Read how telephony via Teams works, what you can do with it and whether it suits your organisation.

Max HoltropBy Max Holtrop

You already use Microsoft Teams for chat and video calls. But did you know you can also make regular phone calls with it, using a fixed business number? More and more organisations are replacing their phone system with calling via Teams or a linked solution. In this article you read how that works and whether it suits you.

Calling from the app you already use

With business telephony via Teams you call and are called from the same app in which you already collaborate. On your laptop, phone or a desk phone, with your own business number. No separate phone system anymore, no separate system to manage.

What you can do with it

  • Call with a fixed number, internally and externally.
  • Transfer, queues and menus for your customer contact.
  • Reachable anywhere, at home or on the road, on any device.
  • One environment for calling, chatting and meeting.

Teams or a linked phone system?

Teams telephony is ideal if you want everything in one environment. If you need more, such as extensive call routing or integrations, a modern phone system like 3CX is a strong choice, which you can link to Teams. We look at what suits your way of working.

Part of your modern workplace

Business telephony belongs to a complete Microsoft 365 workplace. Schedule a no-obligation consultation and we will show how calling via Teams works for you.

← Back to news

Frequently asked questions

Good to know

Can you make business calls with Microsoft Teams?

Yes. With business telephony via Teams you call with a fixed number from the Teams app, on any device. You no longer need a separate phone system.

What is the difference between Teams telephony and 3CX?

Teams telephony keeps everything in one environment. 3CX is a full phone system with more extensive call routing and integrations, which you can link to Teams. Which fits depends on your way of working.

Can I keep my current phone number?

In most cases yes. We port your existing numbers, so you stay reachable on your familiar number.

Questions about this?

Want to spar with a specialist?

Curious what this means for your organisation? Book a no-obligation consult — we’re happy to think along.

Book a consultation →