Get to know Horizon - an award winning Hosted Phone System.

Get a demo of the UK's leading Hosted Phone System today.

Brands that trust Gamma:

Gamma Horizon offers a complete cloud communications system for your business, which easily gives control of your fixed and mobile telephony.

Why choose Horizon hosted phone system?

A hosted phone system from Gamma means no costly PBX maintenance or upgrades. We are responsible for the hardware and software, including system upgrades ensuring you are always up to date.

As well as giving your organisation access to low-cost and free IP calling, a hosted system puts a huge range of smart call management features at your fingertips. Mobiles and other devices can also be integrated.

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The benefits of Hosted phone systems

Ideal for home and flexible working

Get new features immediately

Save money, work smarter

One supplier makes your life easier

Multi-site deployment – only one system to buy

Highly reliable and scalable with support wrap

Introducing Horizon Collaborate - An award winning phone system just got even better.

Fully integrated with the award-winning Horizon hosted PBX service, Horizon Collaborate supports all the features and functionality of the telephony service for a true unified communications experience.

Find out how the right meeting tools can help you get more done

Gamma’s new Horizon Collaborate solution offers services such as instant messaging and presence, voice, video, desktop and application sharing, and document sharing. Driven through a set of end user applications for Windows, MAC, Android and iOS, it enables users to access business communications and collaboration services from their favourite devices – wherever they are.

Fully integrated with the award-winning Horizon hosted PBX service, Horizon Collaborate supports all the features and functionality of the telephony service for a true unified communications experience.

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How does Gamma ensure Quality?

At Gamma we’re different. As a dynamic, independent network operator we’ve no legacy of infrastructure to protect. No fixed mind set. No hidden agenda. Just a different approach – fresh thinking and a commitment to developing innovative, disruptive products and services.

That's why ore than 98% of our customers have remained with us after the first year of service. This retention rate is one of the highest in the marketplace, thanks to our excellent customer service.