The Unified Communications solution partner of choice.
Simplify communications, improve collaboration and optimise customer experiences with a unified communication solution from the UK's most accredited partner.
Platinum Partner and EMEA Reseller of the Year
33
Years delivering enterprise solutions
98%
Customer satisfaction score
Global Partner of the Year for Converged Communications
What sets our Unified Communications solutions apart?
One Trusted Partner
Our in-house specialist team will design and deploy your solution, work with you to drive adoption, provide managed services and long-term support alongside proactive account management.
Critical Communications
For environments where your communications platform has to work, we deliver complex on-premise and hybrid solutions to give you peace of mind and keep people connected at all times.
Critical Comms
For environments where your communications platform has to work, we deliver complex on-premise and hybrid solutions to give you peace of mind and keep people connected at all times.
Global UCaaS
We deliver unified communication solutions on a global scale, enabling our customers to migrate to a single platform with a single partner to manage all elements including local dial tone and support capabilities.
SBCs
Our Session Border Controller capabilities enable our clients to best enable phone capabilities within leading cloud UC platforms alongside complex integrations with legacy environments.
Compliant Call Recording
Even in highly regulated environments, we enable our customers to record calls in a compliant manner and deliver insights from those conversations to inform business decisions.
SIP Trunking
Cost-effectively and securely connect both legacy and modern platforms via Charterhouse’s own intelligent SIP platform or our partnerships with leading carriers.
Strategic partnerships.
Trusted by the industry's most innovative technology vendors, we maintain top-tier partner status that recognises our technical excellence, proven expertise and commitment to customer success.
As a Zoom Platinum Partner and EMEA Reseller of the Year, Charterhouse is recognised for its technical excellence and delivery expertise. From Zoom Phone to Zoom Customer Experience, we design, deploy and support secure, scalable collaboration environments for complex organisations, integrating Zoom seamlessly with broader business and technology ecosystems.
Through our specialist Microsoft division - Symity - Microsoft's Converged Communications Partner of the Year 2024, Global Advisory Partner and Solutions Partner for Modern Work and Security, we help organisations modernise communications with secure, scalable Teams and Modern Work solutions, backed by proven adoption, change management and compliance expertise.
Hear from clients who unified their communications with us.
Technology is only part of the story. Read how our people, expertise and partnership have helped customers deliver lasting transformation:
"
We wanted a partner that could help us move from where we were to where we needed to be. Through the relationship, we’ve been able to grow; our knowledge has grown through working the Charterhouse project team, our confidence and expertise have grown, and we feel empowered as a result to continue improving. Charterhouse were genuinely interested in making our transformation project a success, rather than just providing a service.
Liam Abbott, Head of Digital and Customer Experience, Bath & North East Somerset Council
"
Our partnership with Charterhouse and the solution we’ve implemented is making a real difference to the lives of students that come to study at the University of Cumbria. It is a key enabler to the delivery of our academic programmes, the digital delivery of study wherever the students are located. At the flick of a button, the University of Cumbria can now provide our staff and students with agile, flexible ways of working that benefit us all. Charterhouse has been instrumental in this transformation - the impact cannot be understated.
Stephen Young, Head of Technology Services, University of Cumbria
Service quality you can measure.
1.2M+
Supporting millions of users globally for organisations where failure isn’t an option
98%
Customer satisfaction score, reflecting the quality of our service, support and delivery teams
+53
Net promoter score, demonstrating our ability to consistently deliver exceptional outcomes
24/7
UK-based 24/7 support with service management, governance and reporting built in as standard
How we deliver your Unified Communications solution.
You follow a clear path from discovery to continuous improvement. We guide you through every stage without disrupting live calling.
1
UC Discovery Workshop
A complimentary 90-minute workshop led by our solution architects, where we'll assess your communications estate, contracts, integrations and operational challenges to identify opportunities for improvement.
2
Advice and Proof
Receive a tailored roadmap aligned to your business priorities, with recommended platform options, expert guidance, and a personalised demonstration or proof of concept to validate your approach with confidence.
3
Managed Migration
Our specialist professional services team manages every aspect of migration, from number porting and integrations to continuity planning, ensuring a seamless transition with minimal risk and disruption.
4
Adoption and Training
Maximise user engagement from day one through structured training, change management and adoption programmes that help your people embrace new ways of working and realise value faster.
5
Continuous Optimisation
Benefit from 24/7 UK-based support, proactive account management and regular service reviews, ensuring your communications platform continues to evolve alongside your organisation's needs.
What changed for clients after we unified their communications?
See how leading organisations transformed communications, improved collaboration and delivered better outcomes with Charterhouse. From modernising legacy phone systems to enabling seamless hybrid working, these success stories showcase the measurable impact of a well-designed communications strategy.
Revolutionising communication
St Paul's Cathedral
See how St Paul's Cathedral transformed their ageing communications by moving to the cloud, delivering greater flexibility, enhanced collaboration and the foundations for long-term digital transformation.
Collaboration without limits
University of Cumbria
Discover how the University of Cumbria transformed teaching and learning with a modern communications platform, enabling flexible study, seamless collaboration and a better experience for staff and students alike.
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Cyber Security
Build on a resilient connectivity foundation.
Secure users, devices and conversations with integrated security controls that reduce risk without compromising productivity.