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Features / VoIP Phone Systems

The VoIP phone system for your business

Voice over Internet Protocol (VoIP) is here to revolutionise how you make calls. Whether you’re looking for a new phone system for your office or you simply want to empower a remote team, VoIP is the flexible solution for your business. CircleLoop offers a market-leading VoIP phone system with added features and tool integrations at no extra cost, with no lengthy contract.

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No landline required

No need for a phone line or installation costs, just sign up, add users and get calling. All you need is an internet connection, you don’t even need a phone.

Rolling contract

Our VoIP phone systems don’t require lengthy contracts. You have full control with a rolling monthly contract.

More than just phone calls

A VoIP system gives you access to more than just a phone. We have powerful features, like call recording, virtual numbers and analytics alongside integrations with the biggest tools.

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Voice over ip

The benefits of VoIP with CircleLoop

  • VoIP offers a cloud-based solution to give you maximum flexibility
  • Integrate with Hubspot, Pipedrive and all your other favourite tools
  • Easily record your calls to improve your internal processes
  • Add virtual numbers to your account to appear local
  • Powerful call analytics give you complete oversight of your team’s performance
  • Without the need for a landline, you can take calls anywhere you have the app and an internet connection
  • Fully customisable IVR Greetings & Menus, call routing and call forwarding

I can't understand why anybody would buy a standalone telephone system when Circleloop has all of the features of an expensive PBX phone system with no desk phone equipment needed. It's fantastic."

Lesson Moore

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agile business communications

The ultimate telephone system for your business

VoIP makes your business communications more agile. Moving to a cloud-based system gives you added flexibility, both on your payments and where your team can access their business phone number.

All you need is a reliable internet connection, a desktop or mobile app and you’re good to go. Scale your phone system by adding new users and numbers at the click of a button.

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Voice over Internet Protocol

What is a VoIP phone system?

VoIP is the set of protocols enabling the transfer of voice over the internet. A VoIP phone system is one that’s based around these protocols, meaning it doesn’t need a landline to operate.

It enables you to make telephone calls using the internet with a VoIP enabled device, whether that’s a special desk phone or your laptop.

What is VoIP?

Our business productivity levels have actually increased 40% during the Covid-19 period. Our employees working from home and having access to the facilities they used to have in the office is a major contributor to this.

Envirosystems, Innovating for Agriculture

Read the full case study

For small businesses to established organisations

We’re experts in providing telephone systems for offices and agile employees at startups, small businesses and more established organisations.

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Starting Up

VoIP gives a start up the flexibility it needs to take calls on the go and scale its user base quickly. Add virtual numbers to give your startup a local feel.

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Set up a VoIP network for your business and never miss a call again. All the benefits of a traditional phone network, without the landline and even more features.

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Upgrade your existing phone system to our IP phones and gain powerful analytics, call tracking and forwarding. Get the right team member on the end of the phone.

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VoIP systems provide powerful features

One of VoIP’s biggest benefits over a traditional landline is the additional features. Our VoIP solutions add numerous call features at no extra cost to you, like call recording, call analytics, IVR Greetings & Menus and much more. Discover phone system features.

Self service

Add a Platinum, Gold, Silver or Bronze number to your CircleLoop account

Desktop and Mobile Apps

As a cloud-based phone we run using VoIP (voice over internet protocol), so you can make and receive calls on your mobile or desktop.


CircleLoop can sync up with deskphones, so if you still need a physical phone presence we can help there too.

Number Porting

Port your old number over to CircleLoop, so you haven’t got to worry about losing key inbound prospects.


While our apps lessen the worry of missing a call, we offer voicemail transcribing for any voicemails left to your CircleLoop numbers.

Out of Hours Routing

Set the days and times you are available, route calls to another team, menu or external number

Call Transfer

Transfer calls to another team, menu or another user


All voicemails can be converted to text and sent to your activity feed or email

Conference Calling

Every user gets their own conference room, to arrange group calls with ease

Call Recording

Call recording lets your sales team learn from their mistakes and improve their calls, plus they don’t have to worry about taking note or missing a detail.

Call Greetings & Menus

If people need to return your sales calls, you can set up in-call menus to direct callers to the right place.

Call Forwarding

Send inbound calls to mobile phones or other landline numbers

Do You Have Questions?

Frequently Asked Questions

Take a look at the most frequently asked questions and don't hesitate to contact us if you need further assistance

What is the big switch off?

BT announced that they will be turning off all PSTN and ISDN networks in 2025, which may affect your telephone system. VoIP and cloud-based systems won’t be effected by this, so prepare early.

Learn more about the big switch off.

Do I need to pay extra for features?

All of our features come at no extra cost to you. The only additional costs will be for extra users or numbers.

Can I add a VoIP number to a mobile device?

Absolutely, you can either use our intelligent call forwarding to route internal calls to your mobile number, or you can access your app on your device.

What are the different types of phone systems?

There are three types of phone system, either KSU, PBX or VoIP. A traditional system is historically based on KSU or PBX.

CircleLoop is a cloud-based phone system that uses VoIP technology (Voice over Internet Protocol) which allows for more agile business telephone systems.

Learn what is VoIP.

Do I need to pay installation costs for a VoIP system?

There are no installation costs needed, although we’d recommend running a VoIP system on WiFi rather than mobile data for best performance.

You can get VoIP desk phones for your office, but they won’t need a landline in the same way as a traditional system.

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