The 7 Best Business VoIP Providers in the UK: Tested and Compared in 2024

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Choosing the best business VoIP provider in the UK can be challenging as there are so many options available.

As many UK businesses currently use traditional phone systems and are faced with limited features, poor call quality, and high landline costs, our expert team was quick to review numerous top VoIP products ahead of the PSTN switch-off.

We have scored each provider on reliability, features, ease of use, customer support, and value for money to ensure you choose one of the best VoIP business providers in the UK.

The 7 Best Business VoIP Providers (UK)

  1. Ooma – Best for Small Businesses
  2. Vonage – Best for International Calls
  3. Zoho – Best for CRM Integration
  4. Ringcentral – Best for Large Enterprises
  5. 8×8 – Best for Advanced Features
  6. Nextiva – Best for Reliability and Ease of Use
  7. DialPad – Best for Budget Option/Mobility

Our Top Tested UK VoIP Services

Here, we explore each of the market’s best business VoIP providers in the UK in more depth to help you choose the one best suited to your needs and budget. By examining their key features, pricing, pros, and cons, we aim to provide a comprehensive guide to make your decision easier.

1. Ooma – Small businesses

Ooma Logo

Best For Small businesses
Starting Price £15.69/month*
Trial Period 60 days
Top 3 Features Scalability, Affordability, Advanced security
Why We Picked It

Ooma is our top pick for small businesses due to its affordability and ease of use. With over 50 VoIP features and a straightforward setup, Ooma provides a cost-effective solution that doesn’t sacrifice quality.

In comparison to providers like RingCentral, which offers extensive features at a higher price point, Ooma delivers essential features at a reasonable cost, making it ideal for businesses that need robust communication tools without a hefty price tag.


Scalability – Ooma allows businesses to easily add new users as they grow, ensuring that the communication system can scale alongside the company.

Affordability – With plans starting at just £15.69 per month, Ooma offers one of the most cost-effective VoIP solutions on the market, making it accessible for small businesses.

Advanced Security – Ooma provides comprehensive security features, including call blocking and monitoring, to protect business communications from potential threats.

Voicemail Forwarding and Transcription – Users can forward voicemails to email or SMS and even receive voicemail transcriptions, allowing for quick reviews on the go.

Virtual Receptionist – This feature replaces a real-life receptionist, saving on payroll costs while ensuring calls are efficiently directed to the right departments.


Ooma offers three main pricing plans: Essentials, Pro, and Pro Plus.

Plan Essentials Pro Pro Plus
Monthly £15.69/user/month* £19.62/user/month* £23.56/user/month*
  • Essentials Plan – 50+ standard features, unlimited calling in US, Canada, Mexico, and Puerto Rico, a virtual receptionist, and a mobile app
  • Pro Plan – Includes everything in Essentials, plus a desktop app, text messaging (up to 250 per month), videoconferencing (up to 25 participants), and call recording
  • Pro Plus Plan – Includes everything in Pro, plus CRM integration, text messaging (up to 1,000 per month), videoconferencing (up to 100 participants), team chat, hot desking, and call queuing

*Pricing has been converted from USD to GBP via the live exchange rate on 31 May 2024.

Who it's Best For

Ooma is perfect for small businesses looking for a reliable, scalable, and affordable VoIP phone solution. Its user-friendly interface and essential features make it ideal for startups and growing businesses.

Larger enterprises or businesses requiring extensive call center features might find Ooma’s offerings limited when compared with feature-rich providers like Vonage or RingCentral.

Read our full Ooma review.

Pros pros

  • Available in 70+ countries
  • Easy to use and set up
  • Exceptional call quality
  • Cost-effective plans for home and office

Cons cons

  • Advanced features only available on Ooma Premier
  • Time-consuming cancellation process

2. Vonage — Best for International Calls

Vonage logo

Best For International calls
Starting Price £11/month*
Trial Period 14 days
Top 3 Features 99.999% uptime, Multi-level auto attendant, Visual voicemail
Why We Picked It

Vonage is our top choice for international calls due to its reliable and feature-rich service. With a 99.999% uptime guarantee and a wide range of features, Vonage ensures that businesses can maintain seamless communication across borders.

Compared to providers like Nextiva, which offers advanced features at a higher cost, Vonage strikes a balance between affordability and functionality, making it ideal for businesses with global connections.


99.999% Uptime – Vonage guarantees near-perfect reliability, ensuring that businesses experience minimal downtime.

Multi-level Auto Attendant – This feature allows businesses to manage calls efficiently, directing them to the appropriate departments or extensions.

Visual Voicemail – Provides a written transcript of voicemails, which can be viewed on the desktop or mobile app, helping users quickly review messages.

Call Forwarding – Ensures important calls are never missed by forwarding them to different extensions or phones.

Video Conferencing – Offers high-definition video meetings with up to 200 participants, enhancing team collaboration.


Vonage offers several plans, each designed to meet different business needs:

Plan Mobile Premium Advanced
Monthly £15.72/user/extension* £23.59/user/extension* £31.45/user/extension*
Annual £11/user/line* £16.51/user/line* £22.01/user/line*
  • Mobile Plan – Supports desktop and mobile apps, unlimited domestic calling, SMS and MMS, and voicemail
  • Premium Plan – Includes everything in Mobile, plus supports VoIP desk phones, unlimited video meetings (up to 200 participants), team messaging, VBC app center, and single sign-on
  • Advanced Plan – Includes everything in premium, plus on-demand call recording (15 hours per month), visual voicemail (with transcription), and call groups

*Pricing has been converted from USD to GBP via the live exchange rate on 31 May 2024.

Who it's Best For

Vonage is ideal for small to medium-sized businesses looking for a reliable, feature-rich VoIP service, especially those who require international calling.

Larger enterprises or businesses requiring extensive customization might find Vonage’s offerings limited when compared with enterprise-focused providers like RingCentral.

Read our full Vonage review.

Pros pros

  • Offers 99.999% uptime
  • Boasts 50+ features
  • Easy integrations
  • Easy to set up and use across devices
  • Multiple forms of communication

Cons cons

  • Can only link 3 devices to a number
  • Pricey add-on features

3. Zoho — Best for CRM Integration

Zoho Logo

Best For CRM integration
Starting Price £29.03 per user/month*
Trial Period 15 days
Top 3 Features CRM integration, Multi-level IVR, Call monitoring
Why We Picked It

Zoho is our top pick for CRM integration due to its seamless integration with Zoho’s suite of business applications, particularly its CRM. This integration enhances customer relationship management, making it ideal for sales-driven businesses.

When compared with providers like Vonage, which also offers robust features but lacks the depth of CRM integration, Zoho provides a comprehensive solution for businesses looking to streamline their customer interactions and sales processes.


CRM Integration – Zoho’s VoIP service integrates directly with Zoho CRM, allowing for seamless data flow and enhanced customer management.

Multi-level IVR – Set up interactive voice response systems to guide callers to the right department, improving customer service efficiency.

Call Monitoring – Monitor live calls, whisper to agents, or barge in when necessary, ensuring quality control and training opportunities.

Contacts Module – Import and manage company-wide contacts centrally, view call logs, and gain insights into customer interactions.

Call Queues – Organize agents into teams and route calls efficiently to the relevant group, either simultaneously or sequentially.

Voicemail Transcription – Instantly transcribe voicemails to text, allowing quick review and follow-up.


Zoho offers flexible pricing plans to meet various business needs:

Plan Basic Standard Contact Centre
Monthly £33.30/user/month* £50.38/admin & 10 Telephony agents/month* £67.46/admin & 10 Telephony agents/month*
Annual £29.03/user/month* £41.84/admin & 10 Telephony agents/month* £63.19/admin & 10 Telephony agents/month*
  • Basic Plan – 1,000 free incoming mins per license, per month; 250 free outgoing minutes per license, per month; all-in-one dashboard; multi-level IVR; and live call tracking.
  • Standard Plan – Everything in Basic plus 10 free telephony agents per license, call monitoring, power dialer, queue performance metrics, and upgrade telephony agents
  • Contact Centre Plan – Everything in Standard, plus 2,500 free incoming minutes per license, per month; 500 free outgoing mins per license, per month; one free local number for each license; and advanced noise cancellation

*Pricing has been converted from EUR to GBP via the live exchange rate on 31 May 2024.

Who it's Best For

Zoho is ideal for businesses that heavily rely on CRM systems for customer management and sales processes. Its deep integration with Zoho CRM makes it perfect for sales-driven teams.

Businesses that do not use Zoho’s suite of applications, or those requiring extensive call center features, may find Zoho’s offerings less appealing compared to more specialized providers like Ooma.

Pros pros

  • Seamless integration with Zoho CRM
  • Comprehensive feature set
  • Flexible pricing plans
  • Easy contact management

Cons cons

  • Need understanding of Zoho’s ecosystem
  • Advanced features are pricey

4. Ringcentral – Best for Large Enterprises

RingCentral logo

Best For Large enterprises
Starting Price £23.59/user/month*
Trial Period 14 days
Top 3 Features IVR, Call recording, Video conferencing
Why We Picked It

RingCentral is our top choice for large enterprises due to its extensive feature set and robust integration capabilities. With features like Interactive Voice Response (IVR), call recording, and the ability to host video conferences with up to 10,000 participants, RingCentral stands out as a comprehensive communication solution.

When compared with a provider like Ooma, which is better suited for small businesses, RingCentral offers the scalability and advanced features required by larger organizations.


Interactive Voice Response (IVR) – Automate call routing with customizable menus to ensure callers reach the right department quickly.

Call Recording – Record calls for compliance, training, and quality assurance. Both on-demand and automatic call recording options are available.

Video Conferencing – Host high-quality video meetings with up to 200 participants on standard plans and up to 10,000 participants with add-ons.

Enhanced Business SMS – Send and receive business SMSes with templates and the ability to switch between devices seamlessly.

Ring Groups – Organize how incoming calls are managed, ensuring efficient call distribution among team members or departments.


RingCentral offers three main pricing plans designed for different business needs:

Plan Core Advanced Ultra
Monthly £31.45/user/month* £35.38/user/month* £43.25/user/month*
Annual £23.59/user/month* £27.52/user/month* £35.38/user/month*
  • Core Plan – Unlimited domestic calling, 100 toll-free minutes, basic integrations with tools like Microsoft Teams, Slack, and Google, call recording, and video conferencing for up to 100 users
  • Advanced Plan – Everything in Core, plus 1,000 toll-free minutes, advanced call queue capabilities, unlimited internet fax, hot desking, and hundreds of integrations including top CRM software
  • Ultra Plan – Everything in Advanced, plus 10,000 toll-free minutes, unlimited team messaging, file-sharing, and recording storage, video conferencing for up to 200 users, and business analytics Pro for data-driven reporting

*Pricing has been converted from USD to GBP via the live exchange rate on 31 May 2024.

Who it's Best For

RingCentral is ideal for large enterprises needing a scalable VoIP solution with advanced features and extensive integration capabilities. Its robust video conferencing and call management features make it perfect for companies with complex communication needs.

Smaller businesses or those with simpler communication requirements may find RingCentral’s offerings too extensive and costly. Providers like Ooma offer more affordable plans with features tailored to small businesses.

Read our full RingCentral review.

Pros pros

  • Great for remote, hybrid, or on-premise collaboration
  • Numerous integrations
  • Compatible with all OS systems
  • User-friendly and easy to set up
  • Excellent video conferencing quality

Cons cons

  • Hot desking only available on higher-end plans
  • Customer support has mixed feedback

5. 8×8 – Best for Advanced Features

8x8 Logo

Best For Advanced features
Starting Price £18.88/user/month*
Trial Period 30 days
Top 3 Features Call analytics, Video conferencing, Unlimited fax
Why We Picked It

8×8 is our top pick for advanced features due to its comprehensive call management capabilities, detailed analytics, and robust video conferencing options. With features like call monitoring, voicemail transcription, and native payment processing, 8×8 stands out as a feature-rich VoIP solution.

When compared with providers like Zoho, which offers excellent integrations but at a higher price point, 8×8 provides a balanced combination of advanced features and value for money.


Call Analytics – Get detailed insights into call performance, including duration, conversion rates, and abandonment rates, to identify areas for improvement.

Video Conferencing – Host video conferences with up to 500 participants, with features like hand-raising, instant polls, live emojis, and breakout rooms for interactive sessions.

Unlimited Fax – Enjoy unlimited internet fax capabilities, making document sharing simple and efficient.

Call Monitoring – Listen in on live calls for training purposes or quality assurance without the customer being aware.

Team Management – Utilize features like presence detection, skill-based routing, and post-call surveys to optimize team performance and customer service.


8×8 offers a range of pricing plans, but the following three are most suitable for businesses:

Plan X2 X4 X8
Monthly £18.88/user/month* £34.61/user/month* £110.11/user/month*
  • X2 Plan – Unlimited domestic calling in 14 countries, team messaging, video conferencing up to 500 participants, call recording available as an add-on, and voicemail transcription
  • X4 Plan – Everything in X2, plus unlimited domestic calling in 48 countries, advanced call management features, frontdesk for receptionists and operators, and ability to listen in on active calls
  • X8 Plan – Everything in X4, plus unlimited team messaging, file-sharing, and recording storage, quality management and speech analytics, auto-dialer, and advanced noise cancellation

These plans were chosen for their balance of affordability and advanced features, making them suitable for businesses of various sizes and needs. They provide a comprehensive set of tools to improve communication and management efficiency.

*Pricing has been converted from USD to GBP via the live exchange rate on 31 May 2024.

Who it's Best For

8×8 is ideal for medium to large businesses looking for a VoIP solution with advanced features. Its detailed call analytics and robust video conferencing options make it perfect for enterprises needing comprehensive communication tools.

Small businesses or startups with limited budgets may find 8×8’s pricing out of reach when compared with other providers like Zoho, which offers more affordable plans with a standard feature set.

Read our full 8×8 review.

Pros pros

  • Easy to use and set up
  • Excellent call quality
  • 999% uptime and top-notch security
  • Industry-leading call management features

Cons cons

  • Support can be slow
  • It can be expensive for small businesses

6. Nextiva – Best for Reliability and Ease of Use

Nextiva logo

Best For Reliability and ease of use
Starting Price £14.90/user/month*
Trial Period 7 days
Top 3 Features Free number porting, Voicemail notifications, Shared line appearance
Why We Picked It

Nextiva is our top choice for businesses seeking a reliable and easy-to-use VoIP solution. Known for its exceptional uptime and user-friendly interface, Nextiva ensures seamless communication and minimal downtime.

Its features, such as free number porting, voicemail notifications, and shared line appearance, make it ideal for businesses that need a straightforward yet powerful communication tool.

When compared with other top providers like RingCentral, which offer extensive features but can be more complex to set up and use, Nextiva strikes a balance between functionality and simplicity.


Free Number Porting – Easily switch to Nextiva without losing your existing business phone numbers, ensuring a seamless transition.

Voicemail Notifications – Receive instant notifications via SMS or email whenever you receive a voicemail, ensuring you never miss an important message.

Shared Line Appearance – Allows multiple devices to share the same phone line, making it easier to manage calls and improve team collaboration.

Call Management – Advanced call management features, including call routing, call forwarding, and auto-attendant, to ensure efficient handling of inbound calls.

Team Collaboration – Built-in chat and collaboration tools to enhance communication within the team, ensuring everyone stays connected and informed.


Nextiva offers three main pricing plans suitable for businesses:

Plan Essential Professional Enterprise
Monthly £20.41/user/month* £24.34/user/month* £32.21/user/month*
Annual £14.90/user/month* £18.05/user/month* £25.92/user/month*
  • Essential Plan – Free toll-free and local numbers, unlimited internet fax, voicemail notifications, 1,500 toll-free minutes included, standard auto-attendant, and 24/7 award-winning live support
  • Professional Plan – Everything in Essential, plus unlimited domestic texting (1,000 messages per user), advanced call management features, voicemail transcription, 3,000 toll-free minutes included, multi-level auto-attendant, video meetings (40 participants), and CRM integrations
  • Enterprise Plan – Everything in Professional, plus unlimited domestic texting (2,000 messages per user), call recording, unlimited participants in video conferences, 12,500 toll-free minutes included, and premium software integrations

*Pricing has been converted from USD to GBP via the live exchange rate on 31 May 2024.

Who it's Best For

Nextiva is perfect for small to mid-sized businesses that require a reliable, easy-to-use communication solution. Its simple setup and robust feature set make it ideal for call centers and businesses with high communication needs.

Businesses that rely heavily on long-duration video conferencing might find Nextiva’s 45-minute limit per video call restrictive. For extensive video conferencing needs, consider alternatives like Vonage.

Read our full Nextiva review.

Pros pros

  • Secure and scalable
  • Seamless call transferring
  • Unlimited internet fax on all plans
  • Free toll-free and local numbers
  • Affordable Business Communications plans

Cons cons

  • Mixed feedback on support
  • Video calls limited to 45 minutes

7. DialPad – Best for Small Businesses on a Budget

dialpad logo

Best For Small businesses on a budget
Starting Price £12/user/month
Trial Period 14 days
Top 3 Features AI-powered voicemail, Unlimited calling, Global SMS capabilities
Why We Picked It

DialPad stands out as the best budget option for small businesses, offering a rich set of features at a highly competitive price. Despite being one of the most affordable VoIP services, DialPad doesn’t skimp on advanced functionalities. Features like AI-powered voicemail and global SMS capabilities make it a robust choice for businesses with tight budgets.

When compared to Zoho, DialPad delivers excellent value for money, especially for those needing extensive communication tools without breaking the bank.


AI-Powered Voicemail – Enjoy real-time voicemail transcriptions and management, allowing quick access and efficient handling of messages.

Unlimited Calling – Make unlimited calls within the UK and internationally, ensuring seamless communication without worrying about additional costs.

Global SMS Capabilities – Send and receive SMSes globally, facilitating easy communication with clients and team members across different locations.

Core Conversation Channels – Access essential communication channels for effective interactions and team collaboration.

App Integrations – Integrate DialPad with popular apps like Google Workspace and Microsoft 365 to streamline your workflow.

Mobile & Desktop Apps – Use DialPad on any device with its robust mobile and desktop applications.


DialPad offers three main pricing plans suitable for businesses:

Plan Standard Pro Enterprise
Monthly £18/user/month £28/user/month Custom
Annual £12/user/month £20/user/month Custom
  • Standard Plan – Unlimited calling, unlimited AI meetings for up to 10 participants, SMS, MMS & team messaging, AI-powered call & voicemail transcriptions, Google Workspace and Microsoft 365 integrations, real-time analytics and reporting, and web & chat support
  • Pro Plan – Everything in Standard, plus global SMS capabilities, local number support in 70+ countries, 24/7 live agent support, 10 office locations, and CRM integrations (Salesforce, Zendesk, HubSpot, and Zoho)
  • Enterprise Plan – Everything in Pro, plus 100% uptime, unlimited office locations, unlimited ring groups (departments), dial-by-extension, and integrations with leading SSO providers (Okta and OneLogin)
Who it's Best For

DialPad is perfect for small businesses and startups looking for an affordable yet feature-rich VoIP solution. Its AI-driven features and unlimited calling make it ideal for scaling businesses on a budget.

Large enterprises or businesses requiring extensive call center functionalities might find DialPad’s offerings limited compared to more specialized providers like Ringcentral.

Read our full DialPad review.

Pros pros

  • Modern interface
  • Offers built-in AI and automation features
  • Boasts AI customer center and sales agent support

Cons cons

  • Some AI features are add-ons
  • There’s a slight learning curve

The Top Business VoIP Providers Compared

This comparison table gives you a quick overview of the best business VoIP providers, helping you decide which one aligns best with the needs of your business and budget.

Best Voip Home Phone Best for Starting Price Trial Mobile App Customer support
Ooma Small businesses £15.69/month* 60 days Available 24/7
Vonage International calls £11/month* 14 days Available 24/7
Zoho CRM integration £29.03/user/month* 15 days Available 24/7
RingCentral Large enterprises £23.59/user/month* 14 days Available 24/7
8×8 Advanced features £18.88/user/month* 30 days Available 24/7
Nextiva Reliability and ease of use £14.90/user/month* 7 days Available 24/7
DialPad Small businesses on a budget £12/user/month* 14 days Available 24/7

*Pricing has been converted from USD/EUR to GBP via the live exchange rate on 31 May 2024.

What Is a Business VoIP Phone System?

A Business VoIP (Voice over Internet Protocol) phone system is a communication solution that uses the internet to make and receive calls instead of traditional phone lines. This technology converts voice signals into digital data, allowing for seamless transmission over the internet.

Business VoIP systems offer a range of features such as call forwarding, voicemail, video conferencing, and integration with other business applications like CRM software.

These systems are cost-effective, scalable, and provide high-quality audio, making them ideal for businesses of all sizes looking to enhance their communication capabilities while reducing costs.

Do I Need A Business VoIP System in the UK?

With the upcoming PSTN switch-off in 2025, thousands of UK businesses will need to migrate to VoIP lines.

The Public Switched Telephone Network (PSTN), which has powered phone calls for over a century, will be phased out in favor of more modern and efficient Internet Protocol (IP) telephony. This transition is part of a nationwide move to enhance communication infrastructure and improve service quality.

Businesses that delay this transition may face potential queues due to mass migration closer to the switch-off date. By adopting VoIP now, companies can avoid these issues and benefit from lower costs, high-quality video conferencing, and improved accessibility. Additionally, transitioning early allows businesses to familiarize their teams with new systems, ensuring a smoother changeover.

Given that many systems, including alarms and emergency contact points, rely on PSTN, it’s crucial for businesses to act swiftly. Preparing in advance can prevent operational disruptions and leverage the advantages of IP telephony, ensuring seamless communication while future-proofing your business.

What Are the Benefits of Business VoIP?

Switching to a business VoIP system offers numerous benefits that can significantly enhance your company’s communication capabilities. These advantages include cost savings, advanced features, ease of management, and enhanced mobility. VoIP systems are designed to be flexible and scalable, making them ideal for businesses of all sizes.

Cost Savings

By consolidating voice and data networks, businesses can reduce the expense of maintaining separate systems. VoIP often includes features like unlimited and free international calling, reducing call charges.

Advanced Features

VoIP systems come with a host of advanced features, such as call forwarding, voicemail to email, and automated attendants. Integration with CRM systems and artificial intelligence (AI) functionalities, like real-time transcription and smart call routing, enhance productivity and customer service.

Ease of Management

Managing a VoIP system is straightforward with user-friendly dashboards and centralized controls. IT teams can easily configure settings, monitor usage, and troubleshoot issues without specialized hardware.

VoIP systems offer seamless integrations, scalability, and comprehensive training resources, ensuring smooth adoption and efficient management as your business grows.

Enhanced Mobility

VoIP enables employees to make and receive calls from anywhere with an internet connection. Mobile apps and desktop solutions ensure that staff can stay connected, whether they’re in the office, working remotely, or on the go. This flexibility supports modern work environments and enhances overall efficiency.

How to Choose a Business VoIP Provider in the UK

Selecting the right VoIP provider is crucial for optimizing your business communication. With many options available, it’s important to consider key factors that ensure the service meets your specific needs and supports your business growth.

ReliabilityEase of InstallationCustomer SupportValue for MoneyScalability

Ensure the provider offers a strong uptime guarantee — ideally 99.999% — translating to minimal downtime. Check the provider’s track record for service reliability and maintenance schedules to avoid disruptions.

Look for VoIP services with straightforward setup processes that don’t require extensive technical knowledge. Providers should offer clear installation guides, and some may even provide professional installation services to ensure a smooth transition.

Responsive and comprehensive customer support is essential. Opt for providers that offer 24/7 support through multiple channels such as phone, email, and live chat. This ensures that any issues can be resolved promptly, minimizing impact on your operations.

Balance cost with the features offered. Choose a plan that aligns with your business needs, considering the depth of features versus the price. Look for options that include essential features without unnecessary extras that drive up the cost.

Your VoIP provider should be able to grow with your business. Evaluate the scalability of the service, including the ability to add users and integrate with existing technologies. Check for compatibility with popular business applications and the availability of advanced features as your needs evolve.


Who are the VoIP Vendors in the UK?

How much is VoIP per month in the UK?

How much does VoIP cost for a small business in the UK?

Do I need to buy hardware for a VoIP system?

Is there a free VoIP service for businesses in the UK?

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Aidan Weeks
Technology Expert
Aidan Weeks
Technology Expert

Aidan Weeks, a Master's graduate in Mechanical Engineering, has thrived as a freelance writer for over three years. Specializing in tech, engineering, and B2B sectors, Aidan adeptly crafts web copy, blog posts, manuals, product pages, and more, making complex concepts accessible and engaging. His transition from academia to full-time writing reflects his passion for bridging technical expertise with clear, informative content.