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Experience truly seamless communications with a proven VoIP service provider


At Infinitel, we provide bespoke VoIP phone systems for small businesses that are cost-effective, secure, and provide you with better business communications.

Our VoIP solutions include:

What is VoIP and how does it work?

What is VoIP and how does it work

VoIP (Voice over Internet Protocol) is an alternative to traditional phone lines. It enables voice calls to be made over the internet rather than the traditional phone network, which can help to improve business communications and save money for your business in the long run.

These cloud-based business phone systems deliver all the features you would expect from a traditional phone system and more, offering unified communications across multiple channels.

Our reliable VoIP phone systems

Direct Routing For Microsoft Teams Direct Routing For Microsoft Teams

Our Direct Routing service allows you to replace your existing telephone system with Microsoft Teams for superior business communications.

With this VoIP phone system for business, your users will get full calling capabilities in Office 365 without requiring Microsoft Calling Plan licenses or on-premise equipment. Users can make, receive, and transfer calls from any device – including IP desk phones, Microsoft Teams Rooms, PCs, Mac, and smartphones.

If your business is using Microsoft Teams, or if you are looking to replace your existing phone system, get in touch with our specialists today and we will guide you to the right solution for your business.

CloudFusion CloudFusion

CloudFusion delivers cloud-based business phone services with all the features you expect from a traditional phone system – plus unified communications such as instant messaging, mobile apps, video conferencing, and more.

This VoIP phone system is easily managed through a user-friendly web portal, allowing you to add, remove, and update users easily. The scalability provided by cloud infrastructure means that you’ll only pay for what you need – and the phone system is easy to expand as your business grows.

With the same number, CloudFusion extends the capabilities of your phone system to smartphones, tablets, and desktops – allowing you to make and receive calls from anywhere in the world.


Cloud 3CX is a fully managed, feature-rich cloud phone system designed to accommodate all of your communication needs for an affordable, fixed monthly cost.

This innovative VoIP for business solution gives your team the tools to work together better than ever before, including presence status, instant messaging, whiteboard, screen sharing, and a whole host of other incredible communication features.

Integrated video conferencing with 3CX is straightforward, quickly allowing your team to jump into a video conference at a moment’s notice. What’s more, 3CX can be easily integrated with popular CRMs such as Salesforce and Office 365 for streamlined communications.

Discover more about how 3CX can help your employees work more seamlessly – whether they’re in the office, on the road, or working from home.

SIP Trunking SIP Trunking

SIP trunks connect your business phone system to the public switched telephone network (PSTN) and enable users to make, receive, and transfer calls over the internet via the Infinitel network.

Infinitel SIP trunks are more cost-effective and more flexible compared to ISDN – and they’re quicker to install, too. SIP trunking is an ideal solution for businesses of all sizes, offering everything from two channels for a small office to thousands of channels for large businesses and contact centres.

The ISDN network will be turned off in the next few years. By converting to a modern solution now, you’ll be protecting any future investments you make within your communication network.

Why upgrade to a VoIP phone system?

Cost reduction Cost reduction

VoIP phone systems for small businesses offer significant cost savings over traditional on-premise phone systems. Pricing is simple and affordable, and the low monthly costs per user/per channel are fixed and easy to manage.

VoIP business phone systems are scalable, which means that you’ll only pay for what you need – and the phone system is easy to expand as your business grows.

What’s more, call costs using a business VoIP system are around 50-70% lower than when using traditional ISDN or analogue telephone lines.

Features Features

Business VoIP phone systems have all the benefits of traditional phone systems – plus unified communications that include instant messaging, mobile apps, video conferencing, and more.

At Infinitel, we provide a wide range of business VoIP phone services to accommodate your every need; from mobility apps for iOS, Android, Mac and Windows to advanced contact features and CRM integration.

Expandability Expandability

As your business grows, you don’t want to be held back by your phone system.

Traditional ISDN and analogue phone lines and on-site phone systems aren’t flexible. You often have to plan and pay for future growth long before you even need it.

With a cloud-based VoIP phone system for small business, you only pay for what you need and users can be added, moved, and changed at any time. You won’t have to pay for more than what you need, and you’ll be able to add more services when needed.

Infinitel’s VoIP phone systems for business have the scale to support one location or one thousand; offering the same features worldwide.

Flexibility Flexibility

VoIP business phone systems are designed to make users more productive wherever they need to work – whether that’s in the office, at home, or on the go.

Users can stay connected with co-workers and customers no matter where they are by using their smartphones or tablets. The iOS and Android apps act as their business phones, using the same number and providing UC features such as presence, instant messaging, conferencing, and more.

Your system will associate your business phone number with your phone wherever you’re connected. This means that callers can always contact you through the same number, helping to maintain a professional and reliable reputation with clients and customers.


Call quality & reliability Call quality & reliability

Our business VoIP phone systems provide you with the highest quality and most reliable end-to-end calling experience.

These systems run on a highly diverse carrier network and all infrastructure is designed for 99.999% uptime. We peer and directly interconnect with most major networks and suppliers to guarantee quality call experiences for all of our customers.

Each segment of our voice platform can operate in the event of hardware or interconnect outages by virtue of their design. And if there is an issue, our engineers will know about it straightaway thanks to around-the-clock equipment monitoring

“Excellent service with step by step updates. Faultless.” Mark Shevlin - Huthwaite Plumbing

Why choose Infinitel for your business VoIP phone system?

The Infinitel team are VoIP for business specialists, with decades of experience in delivering expert solutions to businesses on a national and global scale.

We have the knowledge and expertise to recommend and deliver the right solution for you – and we only work with businesses, so we understand exactly what level of service you need and expect.

Trusted provider Trusted provider

We’re a leading VoIP provider, trusted by thousands of organisations on a national and global scale to deliver exceptional service. From the moment we connect your business VoIP service, you will enjoy all the reliability, resilience and quality that comes from working with a leading provider.

Certified by leading vendors including Microsoft
Certified by leading vendors including Microsoft

We only work with the best vendors and manufacturers including Microsoft, Ribbon, Yealink, and Fuse2. Working closely with world-class technology partners ensures we can provide you with reliable, high-quality services that work perfectly for your business.

24/7 support 24/7 support

Our solutions are monitored 24/7 by an in-house technical team – if there’s a problem with your VoIP phone system, we’ll know about it before you’ve even noticed it’s happened.

Industry experts
Industry experts

Our experts have years of experience under their belts – they know their stuff and are perfectly placed to find a solution that’s right for you, every time.

No industry jargon
No industry jargon

We understand that not everyone is an industry expert like us, so we cut the jargon and use plain language wherever possible.

Solutions for national and
global organisations

IT Solutions

Do you have the connectivity to support a VoIP phone system?

VoIP phone systems

You can use our VoIP phone systems with your current connectivity, or you can connect to one of our full-fibre connections.

Our fibre leased lines are fully managed, offering 99.9999% availability 24/7/365 so that you can have the peace of mind that your mission-critical tasks will be supported and your connectivity will always be on.

Take your business to the next level with the top VoIP provider in the UK

If your business would benefit from upgrading to our VoIP for business solutions, get in touch with the team today.

Our experts will help you to choose the best VoIP system for your business needs, ensuring you receive the most flexible, reliable, and cost-effective solution.

Contact us today!

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