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Qlingen vs Gamma Horizon

Hosted cloud phone system sold through channel partners · Gamma Communications, United Kingdom

Horizon is Gamma's hosted PBX for UK businesses, sold and supported through a network of resellers on a per-user subscription. Qlingen is a Gamma Horizon alternative you run on your own cloud: a multi-tenant phone system on FreeSWITCH with call queues, callbacks, a browser softphone, a mobile app, an AI assistant and a full REST API — deployed and managed on a server in your own cloud account from one panel.

Feature comparison between Qlingen and Gamma Horizon
Feature Qlingen Gamma Horizon
Where it runs Your own cloud account (Vultr, DigitalOcean, Hetzner, Linode, AWS, Google Cloud), deployed in one click Gamma cloud, UK
How you pay No per-user software fee: add seats without a new licence Per-user monthly subscription via a reseller
Several companies on one system Yes, built in: each tenant has its own numbers, users and settings Provider managed per customer
Call queues Yes, with agent login, strategies and hold music Yes, as an add-on
Queue callbacks (press 0, keep your place) Yes, included Via separate contact-centre product
Position and estimated wait announcements Yes, included Partial
Browser softphone Yes, WebRTC in any browser Yes, Horizon Collaborate
Mobile app Yes, with push wake-up and colleague chat Yes
AI assistant that changes the setup for you Yes: ask in plain language, approve the plan, it runs No
REST API Yes, everything in the panel, per-tenant tokens Limited
Custom call logic Yes, your own FreeSWITCH XML with a safety allowlist No
Who holds your call data You do, on your server Gamma does

Why businesses choose Qlingen over Gamma Horizon

  • ✓Host it where you want, including outside the UK, and keep recordings under your own control.
  • ✓No per-user monthly subscription: scale seats without renegotiating a contract.
  • ✓Call queues with callbacks and wait-time announcements are included rather than part of a separate contact-centre product.
  • ✓A REST API and an AI assistant so you can automate changes instead of raising tickets with a reseller.

Where Gamma Horizon is strong

  • •Carrier-grade UK network with numbers, SIP trunks and mobile from one supplier.
  • •Reseller support on the ground across the UK.
  • •Nothing to host or maintain yourself.

Frequently asked questions

Is Qlingen a good alternative to Gamma Horizon?
Yes for most businesses. Qlingen covers extensions, ring groups, call queues, IVR menus, voicemail, conferences, time conditions, inbound and outbound routing, a browser softphone and a mobile app. Horizon is Gamma's hosted PBX for UK businesses, sold and supported through a network of resellers on a per-user subscription.
What does Gamma Horizon do better than Qlingen?
Carrier-grade UK network with numbers, SIP trunks and mobile from one supplier. Reseller support on the ground across the UK. Nothing to host or maintain yourself.
Where is Qlingen stronger than Gamma Horizon?
Host it where you want, including outside the UK, and keep recordings under your own control. No per-user monthly subscription: scale seats without renegotiating a contract. Call queues with callbacks and wait-time announcements are included rather than part of a separate contact-centre product. A REST API and an AI assistant so you can automate changes instead of raising tickets with a reseller.
Can I move from Gamma Horizon to Qlingen without losing my numbers?
Yes. Your numbers stay with your carrier, or you port them to any SIP trunk provider, and point the trunk at Qlingen. Extensions, ring groups and menus are recreated in the web interface or in bulk through the REST API.

Ready to see Qlingen on your own cloud?

Create an account, connect your cloud provider, and your first PBX server is about fifteen minutes away — then compare it with Gamma Horizon on your own calls. Every account starts with a 7-day free trial, no card required.

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