Microsoft Teams Voice

Teams Voice enables you to

Phone call icon

Make and receive external phone calls

Reduce charges icon

Reduce fixed and mobile telecoms charges

Maximise investment icon

Maximise your investment in existing Microsoft licensing

Hybrid working icon

Hybrid working with integrated call, chat, video calls and calendar tools

Increase your resilience icon

Increase your resilience, flexibility and scalability

How does Teams Voice work?

When you replace your analogue private branch exchange (PBX) and telephone lines, Teams Voice works seamlessly with the Microsoft phone system, which your users’ access via the Teams app on desktop or mobile.

Our cloud-based services use Microsoft certified designs and infrastructure to support your migration and deliver value, greater flexibility and increased functionality. Teams Voice connects to your network via your preferred IP connection, such as broadband or Janet, to deliver a high availability end-to-end VoIP service.

Microsoft Teams Voice Diagram

Why choose Teams Voice

To meet hybrid and flexible working expectations, organisations like yours are choosing to consolidate their remote working solutions in the cloud. Teams calling promotes greater user collaboration for geographically dispersed teams. However, Microsoft calling plans come at a higher price.

Teams Voice is a cost-effective service alternative. It provides connectivity to your Microsoft 365 tenant and replaces your traditional PBX and telephone lines in preparation for the closure of BT PTSN starting in 2023. Find out more about BT Openreach PTSN switch off in 2025.

Features of Teams Voice from Trustmarque

  • True cloud solution, no outlay on hardware
  • Carrier-class resilience and availability delivered by Gamma Telecom
  • Provides business continuity and disaster recovery on a per number basis
  • Expert Microsoft licensing specialists
  • Industry leading SLAs
  • Implementation and migration support

What are the options for Teams Voice from Trustmarque

We offer two main options to enable Microsoft Teams calling: Microsoft Direct Routing and Operator Connect for Microsoft Teams. Both are cloud-based and integrate with Microsoft Teams. Our consultants work with you to plan the most effective deployment of Teams Voice over Internet Protocol (VoIP) to meet your requirements.

As a Microsoft solutions partner, we can support all your licensing and Microsoft implementation and optimisation.

In addition to these core services, we also provide:

  • Voice network professional services helping you to plan, design, deploy, train and support your users
  • AutoDiscovery service to accelerate and de-risk transition from your current technology
  • Implementation and staff training services to ensure rapid user adoption and return on investment
  • Cloud contact centre integrations – depending on your needs and aspirations

Case study

Kent County Council transition to Microsoft Teams Direct Routing from Gamma and Trustmarque

Kent County Council was using both the online and on-premise versions of Skype for Business, with approximately 5,000 users on each platform. The solution was approaching end of life at the end of July 2021 the Council knew they would have to quickly migrate all existing users to an alternative telephony solution. A decision had already been taken to migrate to Cloud Telephony in order to experience the commercial and operational benefit of removing any on-premise equipment

Discover how Trustmarque’s Enterprise Connectivity team and Kent County Council migrated 10,000 users to a simplified Teams telephony solution: Read the full case study

Kent County

“Migrating 5,000 users quickly and seamlessly was no mean feat. But Gamma and Trustmarque worked so well together, we felt that we were in safe hands. The project was executed quickly and efficiently, our telephony solutions are now simplified, and we can operate within a fixed budget.”

Stuart Cockett, Interim Head of Kent Public Services Network

Why Trustmarque for Teams Voice?

Our voice network services team has over 20 years of experience in delivering voice solutions to large and small organisations.

Taking a customer-centric approach to solution design, our consultants work with you to understand your business and technical priorities. Then design solutions to meet them, drawing on a range of solution options to achieve your desired outcome. We work closely with a range of partners including Gamma, Colt, BT Openreach, TalkTalk Business, Cisco and Microsoft.

We were awarded the Gamma Telecom Direct Routing Partner of the Year Award in 2021 and 2022

Cisco Gold Partner
Microsoft Gold Partner
Get in Touch