Unlock the power of Microsoft VoIP calling with Teams.

Is your old phone system giving you trouble? Microsoft Teams offers powerful, flexible VoIP telephony that integrates deeply with your M365 environment.

Microsoft Teams VoIP Solutions - Corsica Technologies
Corsica Technologies wins CloudTango's MSP US Select 2026 Award
Microsoft Teams phone solutions - solving the legacy phone crisis - Corsica Technologies

Older phone systems leave a lot to be desired.

If you aren’t using VoIP (voice over IP) in Microsoft Teams, you may suffer from:

  • Expensive, old-fashioned hardware
  • Limited portability and flexibility
  • No integration with Microsoft 365
  • High cost of maintenance and adding lines

What if you could solve these issues with a VoIP solution that’s fully integrated into your Microsoft environment?

Welcome to Microsoft VoIP calling in Teams.

Today’s world requires a new kind of business phone experience—and a Microsoft VoIP solution in Teams is the answer. Here at Corsica Technologies, we build and maintain Teams phone solutions that fit your exact needs. You get:

  • Easy portability to mobile devices, desktops, and more
  • Flexibility and scalability (easy to add lines)
  • Optional calling to and from the outside world
  • Digital voicemail (and easy voicemail sharing)
  • Deep integration to Microsoft 365
Microsoft Gold Partner black text
Microsoft Certified Technology Solutions Expert Cloud Platform and Infrastructure logo.
Teams VOIP Phone Solutions Corsica Tech

👉 Pssst... don't pay MSRP for Teams.

New customers get up to 15% off Microsoft 365 licensing,
and switching is easier than you think.

Why choose Microsoft Teams for VoIP?

Save money with a Microsoft VoIP solution

In terms of hardware, installation, and maintenance, legacy business phone systems are incredibly expensive. Microsoft Teams VoIP calling is cheaper—both in setup and maintenance—because it runs over your existing internet infrastructure and integrates into Microsoft 365.

Get better mobility with VoIP in Teams

A Teams phone number isn’t tied down to a physical phone line. This means you can easily move desk phones around as needed within the office—or between different locations.

This is a massive benefit for team members who travel frequently. With the Teams application on their mobile phone, they can answer their work calls from anywhere, as long as they have an internet connection.

Scale easily with a Teams VoIP solution

Adding new lines in Teams is much simpler and cheaper since the entire system is digital. Your Microsoft partner simply configures Teams to add new VoIP lines, connect new desk phones, and assist with mobile app installation. It’s an easy way to meet seasonal spikes in demand—or onboard new team members.  

Conference calls are easy in Teams

Since Microsoft Teams is a digital-first platform, it can easily handle conference calls. No more worries about special hardware, getting calls bridged, or having to call IT in the middle of an important meeting. Teams just works.

Get clear calling with VoIP in Teams

Teams calls sound crisp and clear, like high-definition audio. You’ll never struggle to understand the other person or ask them to repeat something.

Teams can transcribe and forward voicemails

Want to skim a voicemail in written form or forward it to a colleague? Teams has you covered with next-generation digital voicemail features..

Ready for VoIP calling in Microsoft Teams?

Fill out this form, and we’ll respond within one business day. Let’s explore how we can support your business with a robust VoIP solution in Teams.

Microsoft Teams VoIP FAQs

What is Microsoft Teams VoIP?

Microsoft Teams VoIP refers to Microsoft Teams’ built‑in Voice over Internet Protocol (VoIP) calling capabilities that allow users to make and receive voice calls over the internet instead of traditional phone lines.

In practice, Teams VoIP enables voice and video calls between Teams users as well as external phone calls to and from the public switched telephone network (PSTN) when paired with Microsoft’s cloud telephony features. Implementing VoIP turns Microsoft Teams into a full-fledged business phone system, replacing or supplementing legacy PBX and desk phones.

How does Microsoft Teams phone calling work?

Microsoft Teams phone calling works by turning Microsoft Teams into a cloud‑based business phone system that routes voice calls over the internet instead of traditional phone lines. It allows users to make and receive internal Teams calls and external phone calls (to landlines and mobile numbers) from the same Teams app.

Can you call a phone number from Teams?

Absolutely! All Microsoft Teams VoIP solutions support calling an internal Teams phone from your own device. With the addition of an Enterprise Voice or Business Voice license, your employees can also send and receive calls to any phone number.  

What happens when you call someone in Teams?

Their Teams-enabled device notifies them, and they can pick up the call. Calling occurs directly, with no need to host a Teams meeting, and the conversation will remain private. You can call one contact directly, or multiple contacts in a conference call.

Are there any disadvantages to using VoIP in Microsoft Teams?

The only notable disadvantage of VoIP in general is the fact that it depends on your network connection, and that applies to Teams as well. If your company’s network performance is unreliable, that could impact your Teams phone experience. However, if that’s the case, you probably have bigger issues related to connectivity and productivity. Solving those issues will also eliminate the (potential) disadvantage of using Teams for your business phone needs.

Can you send a text to a Teams phone number?

Yes! You just have to configure Teams and your phone correctly. Read more here: How to send and receive texts in Teams.

How do you add a phone number in Microsoft Teams?

The exact process for adding a phone number in Microsoft Teams depends on how your organization gets PSTN service (Calling Plans, Operator Connect, or Direct Routing). If you work with Corsica Technologies for your Microsoft Teams VoIP solution, Corsica will configure your phone numbers for you.

Is Microsoft Teams secure?

Teams includes robust out-of-the-box security, and a Teams phone expert (like Corsica Technologies) can help you ensure everything is configured properly to maximize your security. This is usually done a part of a larger Microsoft 365 security initiative.

Ready to talk to an expert?

We’ll respond within 1 business day, or you can grab time on our calendar.