The VoIP hub

Not sure if VoIP is for you? Take a look at some of our helpful resources below to find out more about VoIP, how it can benefit your business and how easy it is to switch over.

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What is VoIP?

Understand what VoIP is, how it works and how you can utilise it to enhance the communications within your business.

Understand how VoIP works >
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Switching to VoIP

Need more certainty about making the move to VoIP? The switch is easy—see how your business can do it in 6 easy-to-follow steps.

Switch to VoIP >
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Advantages and Disadvantages of VoIP

Although VoIP has many benefits, there are a few aspects you have to consider before switching - we delve into its advantages and disadvantages.

VoIP advantages and disadvantages >
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VoIP terminology

The world of VoIP can be daunting, with technical terminology used at every turn; we've compiled a list of technical terms and acronyms and what they mean to help you feel more confident.

VoIP terminology >

VoIP for business

VoIP (Voice over Internet Protocol) allows for voice calls to be transmitted over IP networks using an internet connection, rather than over the traditional telephone network. VoIP phone systems take analogue voice signals and digitise the sound by compressing it to make voice packets smaller, it then breaks it up and sends data over an IP network to voice enabled devices such as mobile phones, computers and tablets.

VoIP for business enables call routing to take place via a secure internet connected data centre, rather than through hardware installed on your business premises. The fact that everything is internet-based means the technology is easy to install, there are no upfront connection costs, it’s easy to maintain and upgrade, plus it’s brilliantly agile, meaning the system grows with your business together with delivering an impressive repertoire of powerful call management features.

Hosted in the cloud, IP phone systems add an extra level of reliability that traditional phone systems are often lacking. For any business that relies on tracking calls, hybrid workplaces and call analytics, switching over to IP telephony is a great way to ensure your business runs smoothly and effectively.

Speak to an expert >

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Prepare for a fully digital future

Prepare your business for a fully digital future and gain the competitive edge over your competitors. VoIP phone systems come with a wide range of add-on features to give your business the competitive edge and integrate your business phone with other tools and platforms to provide a unified solution. By switching to VoIP for business, organisations can build a solution that includes telecoms, email, instant messaging, and video conferencing, to create streamlined communication experience that takes full advantage of the power of internet calling. Additionally, VoIP systems support advanced features like call analytics, call recording, and virtual meetings, empowering businesses to optimise and enhance their operations and improve customer service.

Advance your business phone system. Embracing voice over IP technology will digitally transform for your telecommunications, bringing a multitude of benefit, including cost savings, increased flexibility, and enhanced communication capabilities, all while ensuring your business is prepared for the future. With the ability to easily scale and adapt to changing business needs, VoIP phone systems position businesses to embrace the full potential of digital technologies and stay ahead in an increasingly digital future.

Request a demo >

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VoIP options

Horizon VoIP phone system

Focus Horizon is a complete business phone system – a hosted communications service with extensive fixed and mobile telephony capabilities; a cloud-based, scalable and agile telecoms solution with an impressive repertoire of call management features and an easy-to-use web interface which puts you in complete control. It’s cost-effective too and perfect for businesses of every shape and size.

Horizon VoIP phone system >

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Microsoft Teams phone system

Bringing a powerful voice to Microsoft Teams – a business-grade phone system integration delivers an outstanding unified communications solution. The result is a brilliant, yet cost effective, VoIP telephony solution which will enable your business to make or receive voice and video calls directly in Microsoft Teams. Highly capable and feature rich, a Microsoft Teams phone system delivers a platform that will keep your communications one step ahead of the competition and fit for the future.

Microsoft Teams VoIP phone >

PhoneLine+ small business VoIP phone system

PhoneLine+ is the telephony solution for the future and particularly well-designed for small businesses. Its beauty is in its simplicity – smart, digital telecoms technology, delivering a straightforward cloud-based phone system. And now is the time to upgrade! The PSTN (public service telephone network) switch off is fast approaching so choosing to move to an all-IP solution for your business may be the best decision you make today. PhoneLine+ has been expertly designed to replace traditional landline services and is jam-packed; all at a brilliantly competitive price.

Small business VoIP phone >

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VoIP handsets

Mitel cloud PBX

Simplicity, reliability and dynamic user experience. Mitel’s comprehensive range of phone systems provides an all-in-one business communication solution which delivers on every level for businesses of all sizes. Whether you’re looking for a feature-rich contact centre solution, unified communications platform or cloud-based technology system to futureproof your business - Mitel, in partnership with Focus Group, is the perfect fit.

Mitel handsets >

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Avaya VoIP phone

The ideal communications solution for SMEs, this award-winning cloud phone system delivers a full-feature platform that can be implemented and managed on your premise. With everything you need at your fingertips, on any device and in any location, Avaya Cloud Office will simplify the way your business communicates with customers, making every conversation count.

Avaya VoIP phone >

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Ericsson LG IP handsets

With innovation and development at the heart of the Ericsson LG brand, allow Focus Group to present this reliable, highly-resilient and feature-rich communications platform. Ericsson-LG is an industry leader with research and technical innovation at the heart of the brand, delivering a reliable, resilient and future-proof communications platform for SME and Enterprise businesses.

LG VoIP phone >

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VoIP packages

All VoIP licences include FREE handsets, FREE connection and call management.*

* 3 months for free and advertised packages available for new Horizon phone system customers only.
All prices are based on a five year contract term and a minimum of 10 users.


from £7.99/pm

  • ✔  100 inclusive minutes
  • ✔  Online portal

Enquire now


from £14.99/pm

  • ✔  750 inclusive minutes
  • ✔  Online portal
  • ✔  Conferencing

Enquire now



from £19.99/pm

  • ✔  2000 inclusive minutes
  • ✔  Online portal
  • ✔  Conferencing
  • ✔  CRM Integration
  • ✔  Horizon Collaborate
  • ✔  Mobile and Desktop Applications
  • ✔  Customised On Hold Music

Enquire now

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Frequently asked questions

A VoIP phone system, or Voice over Internet Protocol phone system, uses internet based technology that allows businesses to make and receive phone calls over the internet instead of using traditional analogue copper based phone lines send voice data. VoIP technology converts voice signals into digital data packets rather than analogue signals to transmit them over an IP network, allowing for less data packet loss, therefore presenting a reliable solution, with minimal interference when communicating over the phone.

Deploying a VoIP phone system offers numerous benefits that make them an attractive choice for businesses, and by 2025 voice over internet protocol (VoIP) technology is set to replace traditional copper phone lines in the UK, as the public switch telephone network (PSTN) and Integrated Services Digital Network (ISDN) are being switched off by BT Openreach. As a result of this all businesses will be required to switch to a VoIP phone system in order to maintain the functionality of telecommunications in their organisation.

The switch to VoIP provides a wide range of benefits to businesses. Firstly it presents a large potential fir cost savings by eliminating the need for separate phone lines and reducing long-distance call charges. Secondly, VoIP phones offer a wide range of advanced features to benefit employees, such as forwarding, voicemail, and auto-attendant, which enhance communication efficiency and customer service. Additionally, VoIP platforms offer a wide range of integrations with other business tools, such as customer relationship management systems and collaboration platforms, improving workflow and productivity. Moreover, with the flexibility to make and receive calls from any device, businesses can enable remote work and enhance employee mobility, empowering businesses with a scalable, feature-rich, and cost-effective communication solution that can drive efficiency, productivity, and customer satisfaction.

A VoIP phone system does everything your traditional business phone system does, and so much more. It comes hand-in-hand with all the call management features you need to run your business effectively, such as call forwarding and routing, call transfers, automatic messaging and so on – but with the game-changing flexibility of being able to utilise these functions on any internet-enabled device and from wherever you are.

VoIP phone systems are a cloud hosted service that require a license per number or extension. Each user will require their own license in order to access the software to make and receive calls. The overall cost of using business VoIP will vary depending on the size of the business, however this comes with a wealth of benefits compared to traditional phone lines and calls can be diverted to any location at any time.

The best phones for VoIP are IP phones as they have been designed for use with VoIP and have call management features which most conventional phones lack. However, if you’re keen to retain your existing PSTN-based landline phones, you can use an analogue telephone adaptor which will allow your phones to work with VoIP technology. The Horizon phone system seamlessly integrates with most on-premise phone systems and provides a wide range of features that can be managed through the desktop or mobile applications.

VoIP phone systems are a cloud hosted service that require a license per number or extension. Each user will require their own license in order to access the software to make and receive calls. The overall cost of using business VoIP will vary depending on the size of the business, however this comes with a wealth of benefits compared to traditional phone lines and calls can be diverted to any location at any time.

A VoIP phone system offers Cost-effective, flexible, agile, secure, scalable and easy-to-use, plus a wealth of call management features…the list of benefits goes on. An industry leading business phone system such as Horizon VoIP is future-proof and will quite simply transform the way you do business.

VoIP for business, otherwise known as a cloud phone system, works by using your business phone number app or VoIP adapter to convert an analog audio signal into a digital signal that can be sent using packets over the internet. This digital voice data is then sent to your business VoIP phone system provider using your internet connection, and then finally the message is routed to the end user who is recieving the call.

Cloud-based phone systems and Hosted VoIP phone systems are essentially the same thing and have the same functionality. The cloud turns any device with internet access into a potential phone using the voice over internet protocol. Business VoIP integrates a business phone system with the cloud to provide a range of voice service over the web including extension dials, instant messaging, video calls, and voicemail management.

As long as you have a secure internet connection, then your VoIP calls will be excellent quality.

A high-speed internet connection is the main component for a VoIP phone system, since this is what the calls will be made through, however you will also need a VoIP service provider, just like with a normal phone.

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Customer stories

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Carers First

A VoIP business phone solution delivered by Focus Group now connects over 16,500 Carers First staff with their patients.

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Hurstpierpoint College

Focus Group scored top marks with the delivery of a brand new, futureproof telephony system to replace an ageing network.

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Yeo Valley

Focus Group has been a trusted partner of Yeo Valley for over 15 years, driving the brand forward with Cisco technologies.

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