The cloud-based enterprise phone systems to make communication simple

Leverage the power and scalability you need with secure, robust and cost-effective cloud telecoms for large businesses from CircleLoop.

Personalised set-up

Access every CircleLoop feature instantly through our simple self-service app. You have complete control of what your callers hear and where your calls route to, with intuitive and easy to configure IVR Greetings & Menus, greetings and prompts. With user, team and global phone number settings available to help you scale your business phone system quickly. There’s no need for an engineer to come out, all you need to do is install the app.

What’s more, anything you add or amend is instantly live with no hardware alterations or change requests required.

What we’ve done for large and established businesses

Quote Mark Quote Mark

"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."

Quote Mark Quote Mark

"The costs are a lot more transparent and stable and we also have the integration based click to call and analytics options too. CircleLoop helped us to overcome the limitations of a traditional phone system."

Trusted and loved by thousands of businesses, including:

Measure team productivity with powerful call analytics tools

Our cloud-based phone system for large businesses comes complete with call analytics and reporting on board. This gives your team leaders instant access to team performance metrics and call recordings. Combine both to improve your training and improve your call quality. Plus CircleLoop integrates with your favourite CRM tools to improve your reporting capabilities.

Shared contacts and shared numbers help your teams collaborate better and get more done, no matter where they’re working, while our suite of powerful integrations helps to reduce the administrative burden of logging calls and notes, so your people can focus on delivering value and getting more done.

Unlock call analytics for your large business.
Try it for free today

Why VoIP phone systems for large businesses are the logical choice

Implementing a VoIP (Voice over internet protocol) system for your large business is quick and easy. It adds a level of agility to your phone system that a traditional business phone system can’t offer.

VoIP uses the internet to carry your voice calls which means you aren’t tied down to a physical desk phone and the costly installation and maintenance that comes with. You can access your numbers and contacts anywhere you’ve got the app and add powerful features to make it even better.

As a large business, having this level of control over your phone system is essential, whether you’re just using VoIP for one team or the whole organisation. It allows for increased flexibility, access to impressive features and low costs that a desk phone just can’t compete with.

What is VoIP?

Secure and robust enterprise communication tools

We know that security is imperative for every large or established business. That’s why CircleLoop is G-Cloud 11 listed, NCSC Cyber Essentials certified and PCI-compliant.
CircleLoop’s apps for desktop and mobile are native to each platform and we work with best-in-class voice carriers to ensure the highest levels of availability and call quality.

Tool integrations for every aspect of your enterprise

CircleLoop integrates seamlessly with hundreds of different tools, across CRM, accounting, marketing and more.

Large businesses are empowered by the tools they use. Many large businesses rely on multiple toolsets across different aspects of the company, and CircleLoop can integrate with most of them. Whether you’re looking to make calls within your CRM platform, track the calls your sales team are making, set up strong internal communications or simply enhance your accounting software, we can help.

Connect CircleLoop to tools like HubSpot, Zoho, Office 365, Xero or Freshdesk and let identify the caller, automatically log your calls & recordings and much more.

Find out more about our phone system integrations for large businesses.

Powerful features to enhance your communication tools

It’s not just our integrations that set us apart. CircleLoop has over 60 smart features that come with your account as standard, perfect for any part of your enterprise business.

CircleLoop offers you professional and customisable IVR Greetings & Menus alongside conference calling, powerful call recording and insightful call analytics. In addition to this, it offers operating hours, configurable privacy settings and a host of other features that are integral to the smooth running of any established business.

A local presence can make the difference to any business. Our virtual number gives you just that!

What’s more, you don’t have to pay extra to access our killer features. They come as standard with your monthly fee.

Explore all our phone system features

Empower your large business phone system with our killer features

Call analytics

Data driven analysis lets you solve problems, improve sales and stop wasting time on poor prospects.

Virtual Numbers

Access hundreds of virtual numbers instantly, allowing you to appear locally or internationally and to assign multiple numbers to a user.

Cloud 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 & Contact Tagging

Tag calls and contacts to give as much context to a sales professional as possible when making another call.


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

IVR Greetings & Menus

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

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.

Click to Call

Never have to worry about leaving your CRM platform, with CircleLoop’s ‘Click to Call’ capabilities you can call your prospects directly from your tools.

Desktop & 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.

Automatic Note Taking

Never worry about taking notes during or after a call again. Call recording automatically logs everything you need as a note to the call or contact.

CRM Integrations

Hook your CRM platform up to CircleLoop and make us your CRM phone system. Get all the benefits of CircleLoop alongside your favourite sales tools.

Communication solutions for any business

While we know that CircleLoop is perfect for any large or established business, we’re also confident that it’s the best communications solution for businesses of all sizes. So, whether you’re a startup or you’re still growing we can help. CircleLoop makes the perfect phone system for remote employees and can be implemented by numerous different teams, whatever their purpose.

Not sure it’s for you? Find out about our phone system solutions for…

Cost effective enterprise communication solutions

Finding a phone system for a large business can be tricky and expensive. You need something that works for every aspect of your company, from sales through to internal teams, and that’s where CircleLoop can help.

CircleLoop’s plans start from just £5 per user per month. You aren’t tied into a contract and there are no setup or installation fees. All of CircleLoop’s features come as standard too, and there are no hidden fees.

See our pricing

Modern day hardware and apps add flexibility

CircleLoop runs on your computer system in our streamlined apps for Mac & Windows, or in the Chrome browser. This lets you access your CircleLoop numbers from anywhere you have the app.

Simply add a quality headset or speaker and your teams are ready to work hands-free from anywhere. We can also support desk phones if you really want them!

Discover more about hardware

Frequently asked questions about large business phone systems...

How do I set up a large business phone system?

All you need to do is install the app. It’s that simple! There are no engineer or installation costs either. All you need to do is download the app, log in and you’re good to go.
Check our guides for setting up your phone system.

How many phone lines do I need for a large business?

With a physical system, you may need several, but with CircleLoop all you need is extra users. Each user can even have multiple numbers, or several users can manage one number.
As a cloud-based phone system, all you need is an internet connection to access it.

How much does a business phone system cost and is VoIP cheaper than a landline?

For a physical phone system, you’re looking at installation and handset costs in addition to your line rental. This can be hundreds of pounds, but with CircleLoop’s VoIP system you’re looking at prices as low as £5 a month, with no hidden fees!

Check out our pricing.

Can I port my old number?

Yes! At CirlceLoop we let you port your old number over, so you can keep it.

Does my enterprise business still need a landline?

When you use a cloud-based system like CircleLoop you don’t actually lose your landline. You still have access to that number, it just works through your apps. You can even still have a physical handset if you want.

Start your free CircleLoop trial today

Set-up in minutes | No credit card required