Microsoft Teams VoIP powered by Operator Connect

Transform Microsoft Teams into a complete business phone system with Microsoft Operator Connect.

Empower your business to make and receive external calls directly within Microsoft Teams.
With Microsoft Teams VoIP from Comms Connect, you can unify your calling, collaboration, and messaging tools in one secure, cloud-based platform.

Built on Microsoft Operator Connect, our Teams VoIP solution gives your organisation the reliability of BT’s tier 1 network, combined with the simplicity of Teams — helping you reduce costs, improve flexibility, and deliver a better experience for your staff and customers.

What Is Microsoft Teams VoIP?

Microsoft Teams VoIP turns Microsoft Teams into a fully featured business phone system.
It allows your teams to make, receive, and transfer external calls over the internet — using the Teams app they already know and love.

No hardware. No complex setup. No new software to learn.
Just clear, secure voice calls through your existing Microsoft 365 environment.

As an accredited Microsoft Teams VoIP provider, Comms Connect connects your business directly to the global telephone network through Microsoft Operator Connect, giving you a managed, enterprise-grade calling experience.

How It Works

Our Microsoft Teams VoIP service connects your Teams tenant to the public telephone network via Microsoft Operator Connect.
This means your Teams app becomes your phone system — for both internal and external calls.

  1. Connect your Microsoft Teams account through the Teams Admin Centre.
  2. Assign numbers and calling plans to your users.
  3. Call anyone, anywhere, directly from Teams on desktop, laptop, or mobile.

All management, provisioning, and call settings happen within the familiar Teams Admin portal — making life simple for your IT team.

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Key Features of Microsoft Teams VoIP

Cloud-based business calling

Secure and compliant

Advanced call features

Simple setup & management

Keep your existing numbers

Carrier-grade reliability

Cloud-based business calling

Make and receive external calls from Teams on any device — no PBX hardware or desk phones required.

Secure and compliant

Enjoy end-to-end encryption, GDPR compliance, and Microsoft’s enterprise-grade security built into every call.

Advanced call features

Access professional-grade features such as:

  • Call forwarding and transfer
  • Call queues and auto attendants
  • Voicemail and transcription
  • Speech recognition for automated routing

Simple setup & management

As your Microsoft Teams VoIP provider, Comms Connect configures and manages the service directly through the Teams Admin Centre.

You can assign users, manage numbers, and adjust settings in seconds — no additional portals or systems required.

Keep your existing numbers

Easily migrate your current numbers — including 08 and 03 ranges — without downtime or complex reconfiguration.

Carrier-grade reliability

Built on BT’s network with a 99.999% shared SLA with Microsoft, ensuring rock-solid voice quality and uptime.

The Power of Microsoft Operator Connect

The Power of Microsoft Operator Connect

Microsoft Operator Connect is the backbone of our Teams VoIP service.
It connects Microsoft’s cloud with leading telecom providers like Comms Connect, ensuring carrier-grade performance and simple deployment.

With Operator Connect, you can:

  • Manage calling directly in Teams
  • Gain access to dedicated support from your provider
  • Integrate easily with Teams-certified handsets and headsets
  • Simplify compliance, security, and number management

This partnership model gives you the best of both worlds — Microsoft’s collaboration platform and Comms Connect’s telecom expertise.

Image of businessman on video call

Benefits of Moving to Microsoft Teams VoIP

Benefit Description
Simplify communication Bring calling, meetings, and chat into one unified platform.
Cut costs Eliminate PBX maintenance, reduce telecom spend, and pay only for what you use.
Improve flexibility Enable remote and hybrid workers to call from anywhere.
Enhance productivity Integrate with Microsoft 365 tools like Outlook, OneDrive, and SharePoint.
Future-proof your business Cloud-first, scalable, and always updated by Microsoft.

Who It’s For

Businesses already using Microsoft 365 or Teams

Companies replacing outdated PBX or ISDN systems

Organisations with hybrid or remote workforces

IT teams looking for simpler management and scalability

Businesses seeking a certified Microsoft Teams VoIP provider for compliance and reliability

Why Choose Comms Connect as Your Microsoft Teams VoIP Provider?

Comms Connect is more than just a telecoms supplier — we’re your strategic Microsoft Teams VoIP provider, delivering tailored cloud calling solutions that make business communication effortless.

You’ll benefit from:

  • UK-based support and provisioning
  • BT and Microsoft-certified network integration
  • End-to-end management, from migration to live deployment
  • Flexible and scalable plans — add or remove users as your business grows
  • Cost savings by eliminating on-premise phone systems and maintenance fees

We take care of everything — setup, porting, user training, and ongoing support — so your transition to Microsoft Teams VoIP is seamless.

Microsoft Teams VoIP FAQs

Microsoft Teams VoIP turns Microsoft Teams into a complete business phone system. It lets your employees make and receive external calls directly through the Teams app — on desktop, laptop, or mobile — using the internet instead of traditional phone lines. It’s a modern VoIP solution designed to simplify communication and reduce hardware costs.

Microsoft Teams VoIP connects your Teams environment to the public telephone network via Microsoft Operator Connect. This integration allows you to use Teams as your VoIP platform while your chosen Microsoft Teams VoIP provider, such as Comms Connect, manages the connectivity, number provisioning, and call quality behind the scenes.

Microsoft Operator Connect is Microsoft’s certified program that connects Teams to leading telecom networks. It ensures carrier-grade reliability, simple setup, and seamless management through the Teams Admin Centre. As an Operator Connect partner, Comms Connect enables this direct connection, providing secure, high-quality voice services through the BT network.

• Make and receive business calls from anywhere using Teams
• Eliminate PBX hardware and reduce telecom costs
• Simplify management with all settings controlled in Teams
• Enjoy 99.999% network reliability with BT
• Stay compliant with end-to-end encryption and data protection
• Scale easily as your business grows

Comms Connect delivers a complete Microsoft Teams VoIP solution powered by BT’s secure infrastructure. We handle setup, number migration, and support end-to-end — so your Teams environment is ready for external calling quickly and reliably. You’ll benefit from UK-based support, carrier-grade quality, and flexible plans tailored to your business.

Yes. When you migrate to Microsoft Teams VoIP with Comms Connect, you can port your existing phone numbers — including 08 and 03 ranges — to the Teams platform. There’s no downtime, and your customers can continue using your existing contact numbers seamlessly.

Absolutely. Microsoft Teams VoIP is built on Microsoft’s enterprise-grade cloud platform, with end-to-end encryption, secure authentication, and full GDPR compliance. Operator Connect partners like Comms Connect also provide additional network-layer security, ensuring your business calls remain private and protected.

Get Started with Microsoft Teams VoIP

Move your business calling to the cloud with Microsoft Teams VoIP from Comms Connect — powered by Microsoft Operator Connect.

We’ll help you plan your migration, port your numbers, and get your users live in no time.