Business VoIP Phone Systems

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Call me today on 0800 160 1111 to chat about your VoIP phone system requirements.

VoIP Solutions: Fast, flexible and future-proof

VoIP phone systems for business are the easiest, most efficient and cost-effective solution to handle your company’s calls, no matter your industry or company size.

By hosting your business telephony over the internet, you can build the exact phone system you need to streamline your inbound and outbound calls, with loads of useful call handling features such as automatic call routing and forwarding, recording, video conferencing, CRM integration and more – all on a single, intelligent phone system.

And, you’ll be protected against the ISDN switch-off in 2025 with a modern, future-proof phone line that integrates seamlessly with the rest of your IT setup…

Call handling

What is a VoIP phone system?

A VoIP phone is a telephone system that uses voice over Internet Protocol technology to make and receive calls. VoIP converts and packages analogue phone signals into digital data that can be sent via the internet instead of via a traditional public switched telephone network (PSTN).

VoIP technology is often cheaper than a traditional phone system and allows a company to essentially ‘work from anywhere’ as long as there is a good internet connection. VoIP services also mean you can make international calls far more cost-effectively and can use digital tools such as call handling features to gain more insight into your team’s efforts.

What are the benefits of VoIP for your business?

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Lower costs

Enjoy free calls with great rates and no restrictive multi-year contracts and say goodbye to expensive maintenance costs.

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Flexible call handling

Handle every call in the right way, wherever you are, keeping both your teams and your customers happy.

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Advanced features

Unlock a rich world of features to enhance your business productivity, from analytics to CRM integration.

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We’ll help you set up to get the most from your new service. Our online portal provides instant access to call handling features.

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Future proof

You’ll be protected against the ISDN switch off while helping make your business more efficient and saving money.

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Better customer experiences

Ensure your customers’ calls are handled efficiently and intelligently with customisable call routing and management.

Need more info?

Contact us for more or pricing on a VoIP phone system for your business.

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How do VoIP phone systems work?

A VoIP phone system uses the internet to place phone calls. Conversations are converted into digital data, then sent over the internet just like other data, and converted back to an audio signal on the recipient’s VoIP phone.

Unified Communications solution

Are VoIP phone systems reliable?

VoIP provides an extremely reliable phone system for your business. If you have a stable broadband internet connection, you’ll enjoy high-quality, high-definition calling with minimal latency, and make use of all the features that can improve your business communications.

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Is VoIP cheaper than landline?

Overall, VoIP is cheaper than a landline phone system. Because VoIP uses your existing internet infrastructure to make calls, you won’t need to spend as much on installation, maintenance and hardware.

You can download our cloud calling rates to see how much you can expect to pay for your business calls.

Can VoIP call landlines?

Yes, VoIP phones can call any device, including normal landline numbers. Download our rates to see how much you can save when calling a landline from your VoIP phone.

Can VoIP receive texts?

Yes, VoIP can send and receive texts. You’ll be able to easily and conveniently send and receive texts on your PC, tablet, mobile or VoIP phone.

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6 Ways to how the cloud can evolve your business

Everything these days is about the “cloud”. If you’re undecided on whether moving to the cloud is right for you, download our guide on how a business VoIP phone service can optimise your company’s productivity and efficiency.



Get even more from your VoIP phone system

Your VoIP phone system is an extension of your business so why not make the most out of your cloud telephony and make use of its native call handling and management features:

Call Management

Call Manager Plus provides a simple and effective way for you to manage and monitor your teams inbound and outbound call volumes and flows.

More on Call Management

Microsoft Teams Calling

Conveniently join video meetings and make video calls through your cloud-based VoIP phone system with our Microsoft Teams add-on module.

More on Microsoft Teams Calling

SIP Trunking

Get the convenience of a virtual line through your existing PBX system and enjoy the convenience of flexible and reliable voice calls.

More on SIP Trunking

Need more info?

Contact us for more or pricing on a VoIP phone system for your business.

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One, all-inclusive licence

No hidden costs and add-ons.

Pay a single user licence to get immediate access to a wide range of features that you can choose to switch on or off as your business needs change and grow.

  • Inbound and outbound calling
  • Advanced call management
  • Video meetings
  • Instant messaging
  • Displayed presence
  • Mobile and softphone apps
  • Microsoft Teams integration
  • WhatsApp and SMS integration*
  • Live call listening, in-depth comms analysis and reporting

* App license costs and SMS credits may be required.

View all features

Professional services

We provide a set of professional services to make the transition to a hosted, intelligent business phone system as easy and enjoyable as possible. Our dedicated service and customer support sets us apart and is an important part of our cloud telephony setup.

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Cloud telephony brochure

Our cloud phone solution

Cloud phone systems allow you to make phone calls, text, meet from anywhere, as well as valuable call management and advanced features that ensure you give a great customer experience every time.

Download our brochure to find out how a cloud-based phone solution can benefit your business.



A VoIP phone system is quick to install and easy to use. In fact, all you need is business-grade broadband connection as VoIP requires very little technical know-how.

We provide a selection of pre-configured IP phones, so you can plug these into an internet connection and you’re up and running. You could opt for a softphone application on your PC, together with a headset, if you do not need a desk phone.

Our expert support team is on hand should you need assistance in getting set up.

A fast Internet connection, like a fibre broadband through to leased line and SD-WAN connections, is definitely needed for a business VoIP system.

The actual bandwidth depends on the number of concurrent calls that have to be made. If you need to make a lot of calls at the same time you will require more bandwidth.

No. This may have been an issue over a decade ago, but VoIP has improved rapidly to provide high-quality calling. VoIP users would not be able to tell the difference between a traditional phone call and a VoIP one. However, audio quality does depend on a number of factors and network congestion or poor configuration can cause issues.

Yes. We can easily set up your employees’ mobile phones with the mobile app to allow them to make and receive calls from any location. They will be able to make and receive calls from their mobile without displaying their personal contact details, displaying their office direct line and have access to the business’ global address book.

Yes, we do! As leading VoIP providers for business in the UK, Windsor Telecom provides various calling solutions to meet your requirements.

The bundles are valid for VoIP calls made to the following countries: Australia, Canada, France, Germany, Italy, Ireland, New Zealand, Spain, Sweden, USA, Denmark, Norway, Poland, Chile, Romania, Slovakia, Brazil, Israel, Peru and Puerto Rico.

Speak to one of our sales consultants to find the best VoIP package for your business needs.

All the call rates per operator are outlined in our  pricing rates card. We’d suggest you review these charges when calling abroad.

Modernising comms for a national manufacturer

Modernising comms for a national manufacturer

A national tile manufacturer asked us to help replace their legacy communication systems and redundant technology to set themselves up for future growth.

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