New Trustmarque launches Prism for Security at Fusion Live 2025.

Collaborative Working

On-Premise Collaboration Solutions

Empowering secure, seamless communication, on your terms.

At Trustmarque, we understand that not every organisation is ready to move fully to the cloud. That’s why our on-premise collaboration solutions are designed to give you the control, reliability, and performance you need, without compromising on flexibility or user experience.

Whether you're modernising legacy systems or integrating with hybrid environments, we help you build a future-ready communications infrastructure that supports your people, wherever they work.

46.8%
of UK businesses still use SIP trunks for on-premise PBX connectivity.
£9.6B
SIP trunking market in 2024 shows strong demand for hybrid voice solutions.
2025
marks the ISDN switch-off, making VoIP and SIP migration urgent for legacy systems.

Benefits

Why Choose On-Premise with Trustmarque?

Maintain full control of your communications infrastructure while benefiting from enterprise-grade performance and security.

We tailor every solution to your unique environment, so you get the flexibility of modern collaboration, without compromising on compliance or control.

Services-enablement

Total Control

Maintain full ownership of your infrastructure, data, and compliance posture. Ideal for regulated industries or organisations with bespoke security needs.

Storage

Seamless Integration

Our solutions work with your existing systems, enabling a smooth transition from legacy PBX to SIP trunking, business broadband, and VoIP services.

redstor-eliminate-downtime

Enterprise-Grade Resilience

With high-availability architecture and robust failover options, we ensure your communications stay online, no matter what.

solutions-empower-people

Expert-Led Delivery

From strategic planning to implementation and support, our specialists guide you every step of the way. We don’t just deliver tech, we deliver outcomes.

Our On-Premise Capabilities

Global Technology Partners

Our Collaboration Partners

Trustmarque works with a carefully selected group of technology partners to deliver robust, secure, and scalable on-premise collaboration solutions. These partnerships ensure we can support a wide range of customer needs, from traditional telephony to hybrid unified communications.

Lates Blog Articles

Get more from your on-premise collaboration investments.