Voice and collaborative working

Embrace the work anywhere from any device era, with Trustmarque. Bring together your teams in the office or at home, increase your productivity and boost your customer experience.

Collaborative Working Header@2x

Connect, communicate and collaborate

Modernise how your business communicates with our cost-effective and flexible business voice and collaboration offerings. Whether an on-premise or a cloud-hosted solution, we’ll help you choose the best products for you.

Collaborative Working Microsoft Teams Voice
Microsoft Teams Voice

The flexible and cost-effective alternative to Microsoft Calling Plans.

Learn more
Collaborative Working Voip
VoIP services

Move to digital calling to improve communication and control costs.

Learn more
Collaborative Working Cloud Pbx
Cloud PBX and Hosted UC

Move all your telephony supporting infrastructure to the cloud.

Learn more
Collaborative Working Sip Trunking
SIP Trunking

Get a next-gen access to the PSTN allowing inbound and outbound telephony.

Learn more
Collaborative Working Phoneline

Replace landline service using VoIP to deliver voice call over the broadband network.

Learn more
Collaborative Working Inbound Numbers
Inbound Numbers

Managed from anywhere, on any device and with any number.

Learn more
Collaborative Working Broadband Connectivity
Broadband connectivity

Business grade connectivity options, from broadband, SoGEA to dedicated ethernet access solutions.

Learn more

Kent County Council transition to Microsoft Teams Direct Routing

Kent County Council
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 Kent County Council

Modern telephony

Whatever your organisation’s long-term goal, whether it be voice enablement of Microsoft Teams or replacement of legacy telephone systems, Trustmarque is here to get the wheels in motion. Our long-standing partnerships give us access to industry-leading solutions, meaning we can help your business maintain and grow a competitive edge.

Collaborative Working Modern Telephony@2x

Our approach

During the project lifecycle, we will guide you from strategic planning through to design, implementation, management and support. We’ll ensure you minimise risk and get the most from your communication and collaboration tools.

Collaborative Working Our Approach@2x


Collaborate to innovate

Unlock your communication with Trustmarque.

Talk to us