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Gamma Horizon
Gamma Horizon · Newbury, Berkshire, UK · founded 2001
What it is
Gamma Horizon is a cloud-based business phone and communications system with customizable calling for organizations. Users can access fixed and mobile capabilities through a portal and apps on Android, iOS, and web, whether working at home or on the move. Businesses can use multiple numbers and configure call routing, queuing, and recording; a receptionist console supports call handling across multiple sites. Existing IP-enabled phones can be integrated, and number porting is available. Gamma says Horizon works 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. A separate Akixi analytics service offers more than 400 sets of historic and real-time statistics. Gamma describes a multi-data-centre setup with call switching and backup routing during site connectivity disruptions. The product page states a 99.95% SLA for Horizon. Pricing is on request, and there is no free plan.
For and against
For
- Supports multiple numbers and custom call routing
- Compatible with more than 200 CRM packages
- Existing IP-enabled phones can be integrated
- Offers number porting
Against
- There is no free plan
- Pricing is available on request
The verdict
Horizon combines cloud-based calling with call management, CRM compatibility, and mobile access. Buyers need to contact sales for pricing, and the product page states a 99.95% SLA.
Who it suits
Horizon suits businesses that need business calling across office, home, and mobile work, including organizations using multiple sites or CRM packages.
Plans and prices
Horizon Cloud Phone System
Pricing not published; contact sales
Read 9 Oct 2026 · gammagroup.co
On the record
- Accessibility
- Listed accessibility features include visual call alerts, adjustable volume, hearing-aid-compatible handsets, TTY support, tactile keys, and auto-answer.gammagroup.co · read 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.gammagroup.co · read 9 Oct 2026
- Audience
- Gamma says Horizon is used by businesses of all sizes and is trusted by over 60,000 UK companies.gammagroup.co · read 9 Oct 2026
- Business numbers
- multiplegammagroup.co · read 22 Sep 2026
- Call handling
- Features include call routing, call queuing, call recording, and a receptionist console for managing calls and multiple sites.gammagroup.co · read 9 Oct 2026
- Call routing
- customgammagroup.co · read 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.gammagroup.co · read 9 Oct 2026
- 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.gammagroup.co · read 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.gammagroup.co · read 9 Oct 2026
- Desktop and mobile apps
- Yesgammagroup.co · read 22 Sep 2026
- Existing phones
- Gamma says existing IP-enabled phones can be integrated with Horizon.gammagroup.co · read 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.gammagroup.co · read 9 Oct 2026
- Product
- Horizon is a cloud-based, customizable business phone and communications system.gammagroup.co · read 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.gammagroup.co · read 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.gammagroup.co · read 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.gammagroup.co · read 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.gammagroup.co · read 9 Oct 2026
