Gamma Horizon
Gamma Horizon is a cloud-based business phone and communications system with customizable calling for office, home, and mobile work.
What Gamma Horizon is
Gamma Horizon is a cloud-based business phone and communications system with customizable calling for office, home, and mobile work. Users access fixed and mobile capabilities through a portal and apps for Android, iOS, and web. Businesses can use multiple numbers and configure call routing, queuing, and recording; a receptionist console supports call management across multiple sites. Existing IP-enabled phones can be integrated, and number porting is available. Gamma says Horizon is compatible with more than 200 CRM packages, including Bullhorn, Salesforce, Zoho, Microsoft Dynamics, and Zendesk. Horizon with Webex combines voice, video meetings, messaging, and file sharing, while Horizon with Akixi provides historic and real-time analytics. Gamma describes service across multiple data centres, with call switching and backup routing during site connectivity disruptions. The product page states a 99.95% SLA for Horizon. UK-based support teams offer 24/7 first-line support. Gamma says it serves businesses and public sector organizations. Pricing is not published; customers are directed to contact sales.
Good
- Apps are available for Android, iOS, and web
- Supports multiple business numbers
- Compatible with over 200 CRM packages
- Offers call recording and queuing
- UK-based first-line support is available 24/7
Watch out
- Pricing is available only by contacting sales
- The listed SLA is 99.95%
Who it suits
Horizon may suit businesses and public sector organizations that need phone capabilities across locations and mobile work. Its CRM compatibility and call-management options may be relevant to organizations managing multiple sites.
Verdict
Gamma Horizon covers business calling, routing, and integrations, with additional Webex and Akixi offerings. Its unpublished pricing means prospective customers need to contact sales for costs.
Plans and prices
From Gamma Horizon's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Horizon Cloud Phone System | Priced on request | Pricing not published; contact sales |
The facts
Each one read from Gamma Horizon's own pages, with the date it was checked.
What it does
- Accessibility
- Listed accessibility features include visual call alerts, adjustable volume, hearing-aid-compatible handsets, TTY support, tactile keys, and auto-answer.checked 9 Oct 2026
- Analytics
- The Horizon with Akixi analytics service offers more than 400 sets of historic and real-time statistics and scales from two to 10,000 users.checked 9 Oct 2026
- Audience
- Gamma says Horizon is used by businesses of all sizes and is trusted by over 60,000 UK companies.checked 9 Oct 2026
- Business numbers
- multiplechecked 22 Sep 2026
- Call handling
- Features include call routing, call queuing, call recording, and a receptionist console for managing calls and multiple sites.checked 9 Oct 2026
- Call routing
- customchecked 22 Sep 2026
- Collaboration
- Horizon with Webex combines voice, video meetings, messaging, and file sharing, and Gamma describes AI features including real-time transcription and intelligent call routing.checked 9 Oct 2026
- CRM integrations
- Gamma says Horizon is compatible with over 200 CRM packages and names Bullhorn, Salesforce, Zoho, Microsoft Dynamics, and Zendesk among its integrations.checked 9 Oct 2026
- Existing phones
- Gamma says existing IP-enabled phones can be integrated with Horizon.checked 9 Oct 2026
- Hybrid work
- Users can access fixed and mobile capabilities through a portal and app while working at home or on the move.checked 9 Oct 2026
- Product
- Horizon is a cloud-based, customizable business phone and communications system.checked 9 Oct 2026
- Reliability
- Gamma describes Horizon as operating across multiple data centres with call switching between centres and backup call routing during site connectivity disruptions.checked 9 Oct 2026
- Security
- Gamma says Horizon uses its next-generation IP network, built-in security for users including remote workers, and managed next-generation firewalls.checked 9 Oct 2026
- Support
- Gamma advertises UK-based support teams offering 24/7 first-line support for Horizon; its support page lists a 24/7 support desk.checked 9 Oct 2026
- Uptime
- The product page states an SLA of 99.95% for Horizon and separately says Gamma's own network has 99.999% uptime.checked 9 Oct 2026
The company
- Company
- Gamma Communications says it sells exclusively to businesses and public sector organisations, with core markets in the UK and Germany and additional presence in Spain and Benelux.checked 9 Oct 2026
- Founded
- Gamma's history page says its story began in December 2001 with the creation of Gamma Telecom.checked 9 Oct 2026
- Headquarters
- Newbury, Berkshire, United Kingdomchecked 28 Sep 2026
Where it runs
- Desktop and mobile apps
- Yeschecked 22 Sep 2026
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