VoIP phone system for modern UK businesses
Switch to a VoIP phone system that cuts costs, boosts flexibility, and keeps your team connected — wherever they work. With crystal-clear voice calls, easy setup, and scalable plans, it’s everything your business phone should be.
What is a VoIP phone system?
A VoIP phone system is a modern alternative to traditional phone lines, allowing you to make and receive calls using your internet connection instead of the public switched telephone network (PSTN). VoIP stands for Voice over Internet Protocol—a technology that converts your voice into data and transmits it over your business broadband.
Unlike traditional phone systems, VoIP systems work across multiple devices, from IP phones and desk phones to mobile apps and desktop softphones. Whether you’re in the office or working remotely, a VoIP telephone system offers the flexibility and scalability today’s businesses need—without the high cost of legacy infrastructure.
How does a VoIP phone system work?
VoIP technology routes your phone calls over the internet rather than using copper phone lines. When you place a call, your voice is converted into digital packets using internet protocol, then transmitted to the recipient via your VoIP provider’s network. The result? A seamless, high-quality voice call experience—often better than what you’d get with a traditional phone system.
With a hosted VoIP setup, your system is managed in the cloud, removing the need for expensive on-site hardware. You can plug in an IP phone, use a VoIP adapter with your current handset, or simply make calls from your mobile phone or laptop. As long as you have a stable internet connection, your business can run a fully-featured VoIP system from anywhere.
What are the benefits of a VoIP phone system?
Built for growing teams
A VoIP phone system gives your business professional-grade communication tools without the enterprise price tag. From HD voice calls to IP telephony features like auto-attendants and call forwarding, it’s built to help your team stay responsive and efficient.
Work from anywhere
With VoIP, your team can make and receive phone calls from any location using a mobile device, laptop, or IP phone. It’s ideal for hybrid teams, remote working, and on-the-go customer service.
Lower your phone bill
Hosted VoIP systems significantly reduce the cost of telephone calls—especially international calls—by routing them over the internet. Plus, there’s no need for costly line rental or PBX hardware.
Flexible, scalable setup
Add new users, numbers, or devices in minutes. VoIP phone systems grow with your team and adapt to your needs—without needing a technician or re-cabling your office.
More than just voice
A VoIP phone system offers unified communication features like instant messaging, screen sharing, and video conferencing—all from one platform, so your team stays productive and connected.
Easy to manage
Control your entire phone system from a single online dashboard. Update call routing, voicemail, or user permissions in just a few clicks—no technical background needed.
Is a VoIP phone system right for my business?
A VoIP phone system is a modern alternative to traditional phone lines, allowing you to make and receive calls using your internet connection instead of the public switched telephone network (PSTN). VoIP stands for Voice over Internet Protocol—a technology that converts your voice into data and transmits it over your business broadband.
Unlike traditional phone systems, VoIP systems work across multiple devices, from IP phones and desk phones to mobile apps and desktop softphones. Whether you’re in the office or working remotely, a VoIP telephone system offers the flexibility and scalability today’s businesses need—without the high cost of legacy infrastructure.
Join 2,000+ UK businesses already using VoIP phone systems
We’re is an award-winning business communications provider, trusted by thousands across the UK. Get in touch to see how we can take away the hassle of business comms — and save you money at the same time.
VoIP phone system vs traditional landline
Feature
VoIP phone system
Traditional phone system
Connection type
Uses your internet connection (internet protocol) to make and receive calls
Uses copper phone lines via the public switched telephone network (PSTN)
Setup
Fast setup with no physical cabling or on-site installation required
Requires engineer installation, cabling, and physical line setup
Devices
Works with IP phones, mobile devices, or desktop apps
Requires desk phones connected to fixed phone lines
Flexibility
Ideal for remote working, hybrid teams, and multiple locations
Tied to one physical location
Cost
Cost Lower monthly costs with cheaper international calls and no line rental
Higher costs due to line rental, maintenance, and limited features
Features
Voicemail-to-email, caller ID, call routing, video calls, instant messaging, CRM integration
Basic calling with limited features—upgrades often require new hardware
HD voice and video calls
Experience crystal-clear voice calls and high-quality video calls across any device. VoIP phone systems use advanced codecs to deliver better call quality than traditional phone lines—ideal for customer service and internal collaboration.
Mobile and desktop apps
Stay connected wherever you work. VoIP services include apps for both mobile phones and desktop devices, so your team can make and receive business calls on the move—without needing a dedicated desk phone.
Smart call routing
Automatically direct incoming calls to the right person or department using custom rules. With features like ring groups, voicemail, and call forwarding, you’ll never miss a phone call again—even outside business hours.
Unified communication
Go beyond phone calls with unified communication tools like instant messaging, video conferencing, and screen sharing. Everything runs through one easy-to-use VoIP platform to keep your team in sync.
CRM integration
Connect your VoIP phone system to your CRM to see caller details, track call history, and trigger workflows automatically. It’s a smarter way to manage leads, support tickets, and customer relationships—without switching between tools.
Caller ID and call analytics
Know who’s calling and how your team is performing. Built-in caller ID and analytics give you visibility into call volume, duration, missed calls, and more—so you can improve efficiency and customer experience.
Why B4BC is the right cloud phone system provider for your business
300+ 5 Star Reviews
Trusted by businesses across the UK, we’ve earned over 300 five-star Google Reviews from companies who rely on our VoIP service every day.
UK-Based Call Team
Our expert support team is based in the UK, offering fast, friendly help whenever you need it—no scripts, no outsourcing.
Same Day Installation
In many cases, we can install and activate your VoIP phone system on the same day, with zero disruption to your business.
Lower Monthly Costs
Our VoIP solutions eliminate line rental and reduce the cost of calls—giving you more for less, with no hidden fees.
In-House Engineers
We don’t rely on third parties. Our in-house engineering team handles everything from setup to troubleshooting, ensuring quality and accountability at every step.
99.999% Uptime
With enterprise-grade infrastructure and built-in redundancy, our VoIP phone systems keep your business online and connected 24/7.
Use your mobile phone
With a dedicated VoIP mobile app, your smartphone becomes a fully functional business phone. Make and receive calls, check voicemail, and join video meetings—no need to give out your personal number or carry a second device.
Turn your laptop into a business phone
Our VoIP service works seamlessly with desktop and laptop apps, so your team can handle calls, instant messaging, and video calls all from one place. It’s ideal for remote working, hybrid teams, and fast-moving environments.
Prefer a desk phone? No problem
We support a wide range of VoIP handsets and IP phones from trusted brands like Yealink. Perfect for office setups or dedicated call handlers, these devices offer HD audio, caller ID, and simple plug-and-play configuration via your internet connection.
Our reviews speak for themselves
Matthew Burton
I have used B4BC for almost 6 years now with my existing business & when it came to setting up my broadband / phone provisions for a new business I went straight to B4BC. These guys have exceptional customer service & take all the stress off your plate so you can focus on the million other things you need to take care of within your business. Could not recommend any higher!
Krishna Pariyar
B4BC has been the best system that I have used so far. They have solutions for every business phone system. The app works on both the desktop and phone, which have made operations convenient. Their support is great with response time and requests. And it’s really easy to reach the Account Manager through email, website chat support, phone and support ticket.
Dan Hall
I would highly recommend anyone to use B4BC for their phone and broadband needs. We have recently moved over to a VoIP system and the whole service from start to finish has been excellent.
Esther Wakeman
Absolutely thrilled with my experience after dealing with Best 4 Business. Not only have they saved our business a significant amount of money, but it has been a breeze to do. Efficient and friendly team.
Darren Lashford
Use B4BC for all our telecoms and its a breath of fresh air compared to who we used before. Recently moved our energy management through them and I’m equally as impressed. I wouldn’t hesitate for a second to recommend them.
Sarah Lowe
Fortunately getting in touch with the team at Best 4 Business is very easy, there are no long call queues so you’re not left on hold for ages & you don’t have to go through lots of different options before being connected to an actual person. The issues I have experienced have been dealt with immediately.
Conor Alexander
We’ve been working with B4BC for many years and they’ve consistently been a pleasure to deal with. Most recently, they upgraded our broadband and phone system – everything was handled smoothly and went exactly as planned.
Philip Wright
Working with Best 4 Business on a Communication system plan that provided modern solutions has been an absolute pleasure. The information afforded, depth of knowledge and flexibility provided was perfect for our future business requirements.
Mark James Morsley
Changing my entire office phone system and broadband is no small task, in fact it’s quite daunting. However luckily or really thanks to Google I found Best4 Business. These guys at B2B are just brilliant! I now have a new VOIP phone system, massively quick broadband, great phones, ongoing support and I have saved nearly £200 a month. Happy owner!!
Stuart Turley
Excellent service and support from these guys. It makes a change to be able to actually talk to someone when you require help without jumping through hoops, I would highly recommend them.
Matthew McKenna
Fantastic service from Best 4 Business Communications. I found this company online on Tuesday and within 2 days they had an engineer on site! We had been unable to get BT in for four weeks now.
Piotr Silwinski
I wholeheartedly recommend B4BC as an internet solution provider. Their outstanding customer service, technical expertise, everyday support make them the ideal partner. Thank you, B4BC, for your unwavering support and for keeping me connected every day!
VoIP Phone System FAQs
All you need is a stable internet connection, a compatible device (like a mobile phone, desktop, or IP phone), and a VoIP service provider. Optional add-ons like headsets, desk phones, or unified communication features can be included based on your team’s needs.
A VoIP phone system uses VoIP technology to turn your voice into data, sending it over your internet connection instead of a traditional phone line. Each voice call is transmitted through your VoIP provider’s cloud network and received just like a standard phone call—but with more flexibility and lower cost.
Installation is quick and easy. Most VoIP phone systems require no specialist hardware or engineering work. Just plug in your IP phones or install the mobile or desktop app. Your VoIP provider will handle number setup, call routing, and system configuration remotely.
Yes—modern VoIP phone systems are highly reliable when paired with a strong internet connection. Backed by trusted VoIP providers, many systems offer 99.99% uptime and deliver crystal-clear voice quality that often outperforms traditional landline phones.
The best VoIP phone system is one that fits your team’s workflow, scales with your business, and delivers excellent call quality. Look for a hosted VoIP service with reliable support, feature-rich IP phones, and simple management tools—all backed by strong uptime and customer reviews.
There are several trusted VoIP providers in the UK, including B4BC, BT, Vonage, and Zoom Phone. The best choice depends on your business size, support needs, and whether you need features like CRM integration or same-day installation.
VoIP phone systems are generally much cheaper than traditional phone systems. Most cloud VoIP plans are billed monthly and include bundled UK and international calls, eliminating the need for costly line rental or hardware. Pricing depends on the number of users, features, and your chosen VoIP service.
Yes—you can use a VoIP phone just like a regular phone, but with more flexibility and features. VoIP telephony supports voice calls, caller ID, call routing, voicemail, and even video calling, often through a single unified platform.
VoIP relies on your internet connection, so poor connectivity can affect call quality. However, with business-grade broadband and a reliable VoIP service provider, most businesses experience high-quality VoIP phone calls and 99.99% uptime.
Yes—most VoIP phones are plug-and-play. All you need is a compatible IP phone or VoIP handset and a stable internet connection. In some cases, you can also use a VoIP adapter to convert a traditional phone into a VoIP-enabled device.
A VoIP phone system lets you make telephone calls over your internet connection using internet protocol, instead of traditional phone lines. It’s a flexible, cloud-based VoIP solution that supports IP phones, mobile apps, and desktop devices—ideal for modern business communication and remote working.
All you need is a stable internet connection, a compatible device (like a mobile phone, desktop, or IP phone), and a VoIP service provider. Optional add-ons like headsets, desk phones, or unified communication features can be included based on your team’s needs.
