Gamma Horizon review
A managed VoIP system with broad routing, CRM, mobile and collaboration capabilities.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Gamma Horizon is a cloud-hosted business phone system for organisations managing voice communications across offices, remote workers and mobile users. It combines VoIP calling with configurable routing, call queues, a receptionist console, call recording, softphone access, mobile applications and business number porting. The product is positioned for small, mid-market and enterprise organisations, with support for multiple business numbers and custom call routing.
Its ecosystem is a central strength. Horizon supports 200 integrations, including Salesforce, Microsoft Dynamics, Zendesk, Bullhorn and Zoho, giving teams established paths into CRM and service workflows. The platform is available through web, iOS and Android, with desktop and mobile deployment options. Optional capabilities extend the system into collaboration, analytics, Microsoft Teams and contact-centre use cases. That breadth makes Horizon a candidate for organizations that want voice, mobile access and business software connections within a managed communications setup.
Support is available by phone and documentation, with 24/7 support listed for the service. Gamma also provides number porting, additional numbers and business continuity options, which suit organizations coordinating communications across locations. Pricing is handled through a personalized quote rather than a named self-serve tier structure, so Horizon is better suited to buyers evaluating a managed deployment than teams looking for immediate public plan comparison. Choose it for configurable business telephony and a wide integration footprint; consider a simpler alternative if your needs are limited to basic calling.
Gamma Horizon pros and cons
- Where it wins
- Configurable routing, queues and receptionist tools support complex call flows.
- Works across web, iOS, Android, desktop and mobile deployments.
- Connects with 200 integrations, including Salesforce and Microsoft Dynamics.
- Where it doesn't
- Pricing is personalised through a contact-sales quote.
- Advanced collaboration and contact-centre capabilities are optional.
- Its managed-voice focus may exceed the needs of very small teams.
Gamma Horizon fact sheet, pricing and score →
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