Hosted Telephony

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Hosted Telephony

Here at Core Team One we have extensive experience of specifying and installing hosted telephony solutions. Our product of choice is Gamma Horizon which we have implemented for over a decade.

Horizon is a hosted business telephone service that resides in the cloud rather than your office. It provides an extensive range of fixed and mobile telephony capabilities accessed through an easy-to-use web portal.  The service allows clients to easily manage their telecommunications environment, whilst enabling their employees to maximise their productivity.

Horizon has many business features with an emphasis on control and administration through the web that takes the burden away from your IT team. The system can quickly be configured according to your organisation’s changing requirements, while your employees can manage calls easily and effectively. With only a minimal capital outlay, a reliable and proven service and a jargon-free approach to telephony and communications, Horizon is suitable for any size of business looking to improve its productivity and image.

Simple to use Powerful features

Easy to use interface

Horizon provides a broad range of call handling features that are accessed via the web. The dashboard gives you convenient access to information such as your call history, voicemail and recorded calls. Personalised settings are quick and easy to set, ensuring your calls are handled effectively.

Administrator Interface

Horizon provides IT managers with a powerful administrative management capability while giving employees freedom to control calls quickly and effectively. Set up is quick and easy and you can choose to pass down control to the user or you can retain control of the individual user features.

Call Recording

Record inbound, outbound or internal calls for compliance, customer service or audit purposes. This optional feature allows secure online playback and retrieval of call details. Set Horizon to record some calls, all calls or record calls on demand. Pause and resume a recording using the in-call menu option on the Horizon desktop app and certain handsets from the Horizon range of devices.

Auto Attendant

Companies can use Auto Attendant to provide callers with call routing options for different areas of the business or create announcements to inform callers of details such as opening hours and website address when the office is closed.

A Choice of Devices

Horizon can be used with a range of devices. We offer handsets from a choice of manufacturers from entry level for low to moderate call volumes up to premium business media phones delivering best-in-class desktop productivity for corporate executives and managers. We also have an easy-to-use desktop soft-client and mobile app. Customers signing up for a 3-Year Horizon subscription can often benefit from ‘free’ hardware by Polycom, YeaLink and Cisco.

To re-iterate, CTO is able to offer a full range of audio equipment; portable headsets perfect for workers on the move, desk phones perfect for office workers and those permanently home based, and audio-conferencing units perfect for meeting rooms and anyone who requires uncompromised audio quality.

So much more than just a phone system

Management Reporting

Do you know how many calls you are getting, how they are being handled or who is handling them? Horizon offers a number of key measurements through its reporting section. However, there is a growing requirement for more in-depth call management reporting and wallboard integration to help organisations gain a real-time understanding of calls. Using the Akixi add-on, the leading hosted call-management service provider, you can now get a data feed for your Horizon service, which will let you export the statistics you need to help manage your business.

Integrator CRM

Integrator CRM leverages the power of your internal CRM. Compatible with over 20 of the top CRM packages including Salesforce, SalesLogix, Maximiser, ACT! and Microsoft Dynamics, Integrator CRM helps users to be even more efficient and productive by providing quick access to contacts and the ability to dial directly from your CRM system.

Soft Client

The Android and iOS Soft Client Apps enable users to make and receive calls on a mobile device via Horizon, as well as providing access to key settings for their service. This is an ideal bolt-on for users who often work remotely or who are regularly on the move.

Horizon for Microsoft Teams

If your organisation uses Microsoft Teams, Horizon for MS Teams allows companies to take advantage of Horizon’s business-grade hosted PBX telephony system using Direct Routing within Microsoft’s Teams ecosystem. This is a simple and cost-effective solution, allowing organisations of any size or industry to make and receive calls to external landlines and mobile phones from the Microsoft Teams application and, in so doing, maximises Microsoft 365 outlay to reduce the total cost of ownership.


Sitting at the heart of Horizon is the world’s leading call controller platform from Cisco BroadSoft, supporting millions of business users and providing the widest set of features while focusing on delivering the best user experience in unified communications. Put your trust in Horizon and CTO!

If you are exploring your options for a new telephony system, please give CTO a call. We are well placed to advise on cost-effective, converged and reliable solutions that will benefit your business.

Want more information?

For more information, please contact: Core Team One Ltd by Phone on 01135 329 800 or by email at

Also, see our testimonials for excellent feedback from our clients.