What Is a VoIP Number? A Complete Guide for UK Businesses

voip number

If you’re exploring smarter ways to manage business communications, you’ve likely come across the term VoIP number. But what exactly is it, and how can it benefit your business?

A VoIP (Voice over Internet Protocol) number allows you to make and receive calls using the internet rather than traditional phone lines. As more UK businesses seek flexible, cost-effective solutions for staying connected, VoIP numbers are fast becoming the go-to option for modern communication.

At Digi Toolbox, we help companies navigate this shift with hosted phone systems and VoIP solutions designed for today’s agile work environments. In this guide, we’ll break down everything you need to know about VoIP numbers—from how they work to why they might be the communication upgrade your business needs.

Why VoIP Numbers Matter to UK Businesses

The Problem with Traditional Phone Systems

Many businesses still rely on landlines or basic mobile contracts. While these systems have served us for years, they come with limitations:

  • Fixed location: You’re tied to a specific place.
  • Higher costs: Long-distance and international calls can be expensive.
  • Scalability issues: Adding new lines can be a hassle and costly.

In contrast, a VoIP number offers the flexibility to make and receive calls from any internet-connected device—whether it’s a smartphone, laptop, or VoIP desk phone.

A Better Way Forward

With remote working on the rise and digital transformation accelerating, UK businesses need communication tools that adapt quickly. VoIP numbers provide:

  • Mobility
  • Scalability
  • Cost efficiency
  • Professional features like call forwarding, voicemail to email, and call recording

How a VoIP Number Works

VoIP numbers operate differently from traditional lines. Here’s a breakdown:

  • No physical line: Instead of copper wires, calls are transmitted over your internet connection.
  • Digital identity: Your number isn’t tied to a location—making it ideal for remote teams and businesses with multiple sites.
  • Versatile devices: Use it on your mobile, laptop, or IP desk phone.

When you dial a VoIP number, the system converts your voice into digital data, routes it over the internet, and reassembles it for the recipient—delivering crystal-clear voice quality when paired with a solid internet connection.

Key Benefits of VoIP Numbers for Businesses

Switching to a VoIP number opens up a range of advantages, especially for small to medium-sized businesses:

1. Cost Savings

  • Lower call charges (especially international)
  • Reduced infrastructure needs
  • Simple pricing models—great for budgeting

2. Flexibility & Remote Access

  • Work from anywhere
  • Keep your business number even when switching devices or locations
  • Easily add users without major setup

3. Enhanced Features

  • Auto-attendants
  • Voicemail-to-email
  • Call recording
  • Advanced call routing

These features are included in most VoIP packages, giving even small businesses access to enterprise-level functionality.

How to Get Started with a VoIP Number

Thinking about switching? Here’s how easy it is:

  1. Assess your needs – Think about the number of users, call volume, and required features.
  2. Choose a provider – Work with a trusted UK-based VoIP provider like Digi Toolbox.
  3. Select your number – Choose between geographic (e.g., 020 for London) or non-geographic (e.g., 0330) numbers.
  4. Set up devices – Use VoIP phones, softphones, or mobile apps.
  5. Train your team – Ensure your staff are comfortable using the system.

We support you at every stage, from setup to training, ensuring your switch is smooth and hassle-free.

If you would like to find out more, please get in touch with us to discuss your requirements or book a meeting with a specialist at a time that works for you.

Phone: 01489 297070
Email: [email protected]
Book a Meeting with a Specialist

VoIP Number FAQs

Q: Can I keep my current phone number?
Yes. Most providers allow you to port your existing number to a VoIP service.

Q: Do I need new equipment?
Not necessarily. VoIP works with existing smartphones, laptops, and compatible desk phones.

Q: Is call quality reliable?
With a stable internet connection, VoIP call quality is often superior to landlines.

Make the Switch with Digi Toolbox

VoIP numbers aren’t just a trend—they’re the future of business communication. If your company needs a flexible, scalable solution that keeps you connected wherever you work, it’s time to explore what VoIP has to offer.

At Digi Toolbox, we provide hosted phone systems, virtual phone numbers, and SIP trunk solutions tailored to UK businesses. Let’s help you communicate better, smarter, and more affordably.

Start Your Project Today

At Digi Toolbox, we’re more than just a digital agency—we’re a partner dedicated to understanding your business and helping you achieve your goals. That’s why we take a consultative approach to discovery, ensuring that every solution we provide is tailored to your unique requirements.

We offer a free discovery consultation, which can be conducted in the way that suits you best: face-to-face, at our office, via Microsoft Teams, or over the phone. This flexibility ensures that no matter how you choose to connect with our digital agency, the process is convenient and designed around your needs.

To deepen our understanding of your business, we also provide free audits covering digital marketing, IT, and telephony. These audits give us valuable insights into your existing systems, allowing our team to identify opportunities for improvement and create bespoke strategies. By taking the time to analyse your business, we ensure that every recommendation we make is perfectly aligned with your objectives.

At Digi Toolbox, we take pride in being a digital agency that puts your business first. With our consultative approach, we’ll deliver personalised solutions to drive your success. Let’s start the conversation. Contact us today to discuss our digital agency solutions today!