One phone system for your whole business from just £4.99/month*

Gamma Horizon replaces your desk phones, mobiles, and voicemail with a single cloud phone system. Route calls by team or skill, keep every number working from any device, and see call activity in one place, no PBX to maintain. *Plus, for a limited time, get 50% off line rental for your first 3 months. Contact us today and start saving.

Built for teams who live on the phone

Real numbers from businesses running their calls on Gamma Horizon.

99.98%

Platform uptime

1.2M+

Calls handled monthly

< 1 day

Average setup time

HD

Voice quality on every call

How it works

Keep your existing numbers. Get every team member calling from day one.

Port your numbers across

Bring your existing landline and mobile numbers with you, or pick new local, national, or freephone numbers in minutes.

Set up your call flows

Build auto-attendants, ring groups, and voicemail routing with a drag-and-drop editor, no phone engineer required.

Your team answers anywhere

Staff take calls on their desk phone, laptop, or the mobile app, with call history, notes, and voicemail synced across every device.

A desktop computer screen, a tablet, and a smartphone displaying the Horizon Unlimited Communications platform with call management dashboards and statistics, next to a Polycom office desk phone.

More than a dial tone

a phone system built around how your team actually works

Advanced Call Routing

Direct incoming calls to the right people or departments with configurable call routing. Create call flows that reflect your business structure, helping customers reach the correct team quickly and reducing unnecessary transfers.

Auto Attendant

Create a professional first impression with automated greetings and menu options. An auto attendant can direct callers to sales, support or other departments, helping your business manage incoming calls efficiently.

Call Queuing & Hunt Groups

Manage busy periods more effectively with call queues and hunt groups. Distribute incoming calls across teams or available users to help reduce missed opportunities and improve the customer experience.

Call Recording

Where enabled and configured, call recording can help businesses review customer conversations, support staff training and maintain appropriate records. Recording policies should reflect your legal, regulatory and data protection obligations.

Mobile & Desktop Applications

Give employees more flexibility with compatible mobile applications and desktop softphones. Team members can handle business calls away from their desks, helping maintain continuity when working remotely or across multiple sites.

Call Reporting and Analytics

Gain greater visibility of your business communications with available call reporting and analytics tools. Review call activity to help identify demand patterns, assess performance and make informed decisions about staffing and customer service.

Business Number Presentation

Present your business number when making outbound calls, where supported and configured. This helps employees maintain a consistent business identity when calling customers from compatible devices.

Multi-Site & User Management

Manage communications across teams, departments and locations through the hosted platform. Horizon can support businesses that need a consistent telephone system as they expand or operate from more than one office.

Voicemail & Call Management

Help ensure important calls are not overlooked with voicemail and configurable call handling. Manage how calls are answered, transferred or redirected to suit your opening hours and operational requirements.

Remote & Hybrid Working

Modern businesses need communications that work beyond the office. A cloud-based phone system allows employees to use compatible devices and internet connections to stay in touch with customers and colleagues, supporting flexible working arrangements.

Improve Your Customer Experience

Professional greetings, call routing and queue management can help customers reach the right person without unnecessary delays. By structuring your call flows around your business, you can deliver a more consistent and professional service.

Simplify Business Comms

Bring key telephone system functions together within a hosted platform. Online administration tools can make it easier to manage users, adjust settings and review call activity without relying on a physical telephone system at your premises.

A collection of four desk phones including a Yealink cordless phone in a charging base and three wired Polycom business phones with digital screens and handsets.

Is Gamma Horizon Right for Your Business?

Gamma Horizon is worth considering if your organisation needs a reliable, flexible business telephone system with centralised management and advanced call handling.

It may be particularly suitable for:

Small and medium - sized businesses looking for professional call management without a complex on-site system.

Growing businesses that need to add users and adjust their communications as requirements change.

Multi-site organisations that want to manage telephone services across different offices.

Customer service teams that benefit from call queues, routing and reporting.

Remote and hybrid teams that need to remain accessible outside the traditional office environment.

The best configuration depends on your team size, call volumes, required features and existing connectivity. Telecoms World can help you assess these requirements before recommending a suitable package.

Is Gamma Horizon Right for Your Business?

Gamma Horizon is worth considering if your organisation needs a reliable, flexible business telephone system with centralised management and advanced call handling.

It may be particularly suitable for:

Small and medium - sized businesses looking for professional call management without a complex on-site system.

Growing businesses that need to add users and adjust their communications as requirements change.

Multi-site organisations that want to manage telephone services across different offices.

Customer service teams that benefit from call queues, routing and reporting.

Remote and hybrid teams that need to remain accessible outside the traditional office environment.

The best configuration depends on your team size, call volumes, required features and existing connectivity. Telecoms World can help you assess these requirements before recommending a suitable package.

A collection of four desk phones including a Yealink cordless phone in a charging base and three wired Polycom business phones with digital screens and handsets.

Why Choose Gamma Horizon?

Choosing the right phone system is only part of the process. You also need a communications provider that understands your business and can help you implement the right solution.

We work with UK businesses to provide business phone systems, connectivity and supporting communication services. Our team can help you understand the available options and identify a solution that matches your operational needs.

When you speak to Telecoms World, we can help you with:

Tailored recommendations: Find a suitable package based on your users, features and calling requirements.

System setup: Arrange the configuration of your chosen phone system.

Number porting: Discuss transferring your existing business numbers, subject to eligibility and the relevant arrangements.

Handset and application options: Explore compatible desk phones, desktop applications and mobile working options.

Ongoing support: Get assistance with your business communications as your needs evolve.

Speak to our team today to discuss Gamma Horizon and request a free, no-obligation quotation.

Four computer screens displaying HORIZON Unlimited communications software interfaces: top left shows call statistics with pie chart and call list; top right displays recorded call search with filters and call details table; bottom left features dashboard with call outcomes bar chart, groups, subscription summary, and top callers; bottom right shows auto attendant management with list of attendants, site, phone numbers, departments, and activate/deactivate buttons.

How Horizon compares to other phone systems

A quick guide to how functionality builds up as you move up a tier. Each plan includes everything in the tier below it.

Feature

Horizon

Wildix

Xelion

X-Bees

iPECS

Best suited for
SMEs and multi-site businesses
Businesses needing unified communications
Businesses wanting flexible call management
Sales and customer-facing teams
Businesses needing flexible deployment
Cloud-based system
Mobile & desktop apps
Depends on solution
Intelligent call routing
Call queuing
Avaliable
Avaliable
Avaliable
Avaliable
Call Recording
Avaliable
Avaliable
Avaliable
Avaliable
Avaliable
Call analytics & reporting
Avaliable
Avaliable
Advanced insights
Avaliable
CRM Integrations
Advanced CRM workflows
Integration options
Video conferencing
With collaboration options
Integration/options dependent
Solution dependent
Internal messaging & collaboration
With collaboration options
Solution dependent
WhatsApp integration
Package dependent
Available options
Available options
Integration dependent
AI-powered insights
With selected solutions
Feature dependent
Feature dependent
Core differentiator
Feature dependent
Microsoft Teams integration
Available
Integration options
Available
Microsoft 365 integration
Integration options
Multi-site support
On-premise / hybrid options
Primarily cloud
Primarily cloud
Check deployment options
Cloud-based
Yes, depending on model

FAQs

What is Gamma Horizon?

Gamma Horizon is a cloud-based business phone system that enables organisations to manage calls using internet-based telephony. It offers business calling and call management features designed to support flexible working and modern business communications.

Is Gamma Horizon a cloud-based phone system?

Yes. Gamma Horizon is a cloud-based telephone solution, reducing the need to rely on a traditional on-site phone system for call processing.

Can I use Gamma Horizon when working remotely?

Horizon supports flexible working through compatible applications and remote calling options. The functionality available will depend on your package, configuration and devices.

Is Gamma Horizon suitable for small businesses?

Yes. Gamma Horizon can be suitable for small and medium-sized businesses looking for professional call handling, flexible working options and a phone system that can adapt as they grow.

Can Gamma Horizon support multiple office locations?

Horizon can support multi-site business communications, helping employees across different locations use a connected phone system. The best configuration will depend on your organisation's requirements.

Does Gamma Horizon include call reporting?

Call reporting and analytics options are available, depending on the package and features selected. These can help businesses review calling activity and understand how their telephone service is being used.

Can I keep my existing business phone numbers?

Number porting may be possible, subject to number eligibility, provider arrangements and the relevant porting process. Contact Telecoms World to discuss transferring your existing business numbers.

How much does the Gamma Horizon Phone System cost?

The cost depends on factors such as the number of users, the features required, your equipment and your contract arrangements. Contact Telecoms World for a quote based on your business needs.

Is Gamma Horizon suitable for businesses with multiple employees?

Yes. Horizon can support teams with multiple users and can be configured around your organisation's calling requirements. The appropriate package will depend on your business size and desired features.