What is the Cheapest Way to Get a Business Phone line?

By Olivia Johnson - Trusted UK Business Expert

Last Updated 8th of February 2026

4 minute read

Looking for the cheapest way to get a business phone line? You’re not alone. We’ve helped hundreds of UK businesses cut costs and stay connected—and we’re here to help you too.

The cheapest way to get a business phone line is through a VoIP (Voice over Internet Protocol) service, using your existing broadband connection. It’s low-cost, flexible, and scalable. Choose a basic VoIP package or bundle with mobile and broadband for better value.

There’s more to saving money than just picking the cheapest option. We’ll explain the types of lines, the best deals, and how to make a smart choice that grows with your business.

Discover the Cheapest Way to Get a Business Phone Line – click the button below to see top deals and start saving today.

What is the Cheapest Way to get a Business Phone line?

Getting a business phone line doesn’t have to break the bank. With so many choices available today—landline, VoIP, or mobile-based solutions—the cheapest option often depends on how your business communicates.

• VoIP (Voice over Internet Protocol) is now the most cost-effective solution. It runs through your internet connection, meaning you don’t need to install a separate landline. VoIP lets you make and receive calls from a desktop phone, mobile, or even your laptop.
• Traditional landlines, while still used by some, are gradually being phased out in the UK due to BT’s switch-off of the PSTN network by 2025. Not only are they more expensive to install, but they also come with higher ongoing charges and less flexibility.
• Mobile-only business lines can also be a low-cost option, especially for freelancers and small businesses. However, they often lack features like call menus, call transfer, or integration with CRMs—functions that VoIP systems offer even at entry-level prices.

Why VoIP Is the Most Affordable Option

Let’s break down the key reasons why VoIP comes out on top when looking for budget-friendly business phone solutions:

Low Start-Up Costs

VoIP doesn’t require copper lines or physical installation. You can be set up in minutes with a simple app and internet connection. Hardware like desk phones is optional.

“I started my salon with a VoIP line on my mobile. It cost under £10 a month and handled bookings like a pro.” – Jasmine, Brighton

Cheap Monthly Rates

VoIP providers like RingCentral, bOnline, and VoIPstudio offer plans starting from £6–£10 per month, often including unlimited UK calls. Compared to landline charges, that’s a big saving.

No Long-Term Contracts

Many VoIP providers offer 30-day rolling contracts, letting you change or upgrade without penalties.

Scalability

Need to add more lines as your business grows? VoIP allows quick user additions with no extra wiring or disruption.

Included Features

Even entry-level plans offer call recording, auto-attendant, voicemail-to-email, and app-based calling from your mobile—features that cost extra on landline systems.

When is a Landline Still Worth It?

While VoIP is ideal for most, there are rare times when a traditional landline may still be suitable:

• Poor internet connection: In rural areas, where broadband is weak or unreliable.
• Emergency services: Landlines provide reliable location tracking.
• Legacy equipment: Some fax machines or card terminals still rely on a landline.

That said, as 2025 approaches, even these businesses are encouraged to shift to digital options. Hybrid VoIP systems (VoIP with landline backup) may help during the transition.

How Much Does a VoIP Business Line Really Cost?

Here’s a cost breakdown example of a basic VoIP setup for a small business:

You’ll save up to £240/year compared to traditional phone line services, which can cost £20–£30/month with call charges added.

Top Tips to Save Even More

Even within VoIP, there are ways to save:

• Bundle broadband + phone line – Many providers offer package deals.
• Use mobile apps only – Avoid hardware and use softphones.
• Prepay for the year – Some VoIP companies give a discount if you pay annually.
• Check for hidden fees – Look for setup fees, porting costs, or international call rates.

“We saved over £500 switching from BT to a VoIP package with internet. Plus, we could answer calls on the go.” – Mick, small café owner in Leeds

VoIP vs Landline: Side-by-Side Comparison

How to Get Started with a Cheap Business Phone Line

Follow these steps to get your phone line set up in no time:

• Choose your type: VoIP is cheapest.
• Pick a provider: Look at pricing, features, and reviews.
• Set up online: Create an account and download any required app.
• Port your number (optional): Keep your old number if needed.
• Test your line: Ensure quality before using it for customers.

Best UK Providers for Cheap Business Phone Lines

Here are the most popular VoIP providers for small UK businesses:

• bOnline – Great value for startups.
• VoIPstudio – Best for quick setup and free trial.
• RingCentral – Feature-rich with mobile-first tools.
• 8×8 – Ideal for remote or hybrid teams.
• Zoom Phone – Known brand with strong video/call mix.

Always compare features based on your business needs. Some may offer free trials—use them.

Want to find the cheapest VoIP deal for your business today? Click the link below and get a free quote now. Save money and stay connected.

FAQ

Can I use my mobile phone for business calls instead of a phone line?

Yes, many VoIP services offer apps that work on your mobile, making it feel like a full business line.

Is VoIP reliable?

With a strong internet connection, VoIP is highly reliable. Always check your broadband speed before switching.

Do I need special equipment?

No. You can use your computer or mobile device. Desk phones are optional.

Can I keep my current business number?

Yes, most VoIP providers support number porting, so you can keep your existing number.

Are calls to international numbers cheaper with VoIP?

Yes, VoIP often offers lower international rates than landlines or mobiles.

This guide is written with expert insights, trust, and simplicity. Whether you’re a start-up, café owner, or freelancer, you now know the cheapest way to get a business phone line in the UK—VoIP is your best bet.

Click below to compare top-rated providers and start saving today.