Best business VoIP phone providers

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Top business VoIP providers

Finding the best VoIP provider is essential when choosing a phone system that supports your business now and as it grows. A reliable business VoIP phone system can improve communication, reduce costs, and give your team the flexibility to work from anywhere.

Enter your postcode above to request a call back from our VoIP experts to find the best VoIP provider for your business.

Microsoft Teams

Integrated with Microsoft 365, Microsoft Teams unifies communication and collaboration tools. It offers call forwarding and advanced meeting features.

Best for:

Businesses already using Microsoft 365.
Companies requiring integrated collaboration tools.
Teams needing scalable communication features.

Horizon by Gamma

Horizon by Gamma provides scalable, cloud-based VoIP with CRM integration and advanced call management.

Best for:

Growing businesses seeking scalable VoIP services.
Teams needing seamless CRM integration.
Organisations looking for reliable call management.

Mitel

Mitel offers flexible VoIP systems for businesses of all sizes, with both cloud and on-premise options available.

Best for:

Enterprises with specific communication requirements.
Businesses needing both cloud and on-premise options.
Companies seeking advanced customisation.

LG Ericsson

LG Ericsson provides a small business VoIP system with advanced call management capabilities.

Best for:

SMEs looking for enterprise-level functionality.
Businesses requiring advanced call routing and monitoring.
Teams prioritising reliability and scalability.

Avaya

Avaya offers reliable communication tools like video conferencing, VoIP services, and call centre software.

Best for:

Companies with dedicated call centres.
Teams requiring integrated video conferencing.
Organisations prioritising reliability and security.

PhoneLine+

PhoneLine+ is an affordable, simple business phone line solution ideal for startups and mobile teams.

Best for:

Startups with limited budgets.
Mobile teams needing a remote office phone system.
Businesses seeking a simple and affordable VoIP solution.

Vonage

Vonage offers a flexible VoIP platform with a wide range of integrations, including Salesforce, Microsoft Teams, and Slack. Its mobile-first approach supports remote and hybrid teams.

Best for:

Remote teams needing flexibility and mobile access.
Businesses looking for CRM and app integrations.
Companies with international calling needs.

Ooma Office

Ooma is a user-friendly VoIP service aimed at small businesses, offering plug-and-play hardware, virtual receptionist features, and mobile app access.

Best for:

Small businesses wanting easy setup.
Teams needing a virtual receptionist and mobile access.
Budget-conscious businesses.

3CX

3CX is a flexible, software-based VoIP provider that runs on your existing devices, eliminating the need for specialist hardware. It includes video conferencing, live chat, and integrates well with Microsoft 365.

Best for:

Businesses wanting control over their phone setup.
Teams using Microsoft 365 or Google Workspace.
Companies with in-house IT support.

8x8

8×8 provides an all-in-one communication platform combining voice, video, chat, and contact centre tools. It includes built-in analytics and global reach.

Best for:

Businesses with contact centres.
Companies wanting voice and video in one platform.
Teams requiring global scalability.

RingCentral

RingCentral is a popular VoIP platform offering robust features like call recording, analytics, and video conferencing, all within a user-friendly app.

Best for:

Small to medium businesses.
Teams needing unified communications.
Organisations seeking high reliability and uptime.

BT Cloud Voice

BT Cloud Voice is a hosted VoIP service designed for UK businesses. It integrates with existing BT business broadband services and offers a wide range of features, including call routing, voicemail to email, and call analytics.

Best for:

UK-based businesses wanting a trusted provider.
Teams already using BT for broadband or mobile.
Companies needing simple setup with reliable support.

Which VoIP provider is right for your business?

Choosing the right VoIP phone provider depends on your business’s structure, operations, and long-term goals. Here are six key areas to help guide your decision:

Business size

Whether you’re a startup that is scaling quickly, it’s important to choose a provider that supports small business VoIP needs now and offers room to grow later. Look for flexible plans, user-based pricing, and upgrade options that adapt as your team expands.

Key features

Prioritise providers that offer the VoIP features your business requires. Consider CRM integration, call routing, advanced analytics and voicemail to email functionality.

Budget

Business VoIP costs can vary widely depending on features, user numbers, and contract terms. Look for providers with transparent pricing, no hidden fees, and flexible contract options that let you adjust as your business needs change.

Support

Reliable support matters. Select a provider that offers fast onboarding, clear training materials, and accessible customer service when you need it.

Security

VoIP security ensures the provider meets industry standards like ISO 27001 and GDPR. Look for features such as secure admin controls, encryption, and compliant data handling.

Remote work

If your team works remotely, choose a provider that supports softphones, mobile apps, and browser-based access. Remote VoIP solutions allow your staff to stay connected without relying on traditional desk phones.

The benefits of choosing a top business VoIP phone provider

Once you’ve chosen the right VoIP provider, your business can benefit from better communication, smarter workflows, and stronger performance across teams. Here are six key advantages:

Business continuity

If your office faces a power cut, flood, or closure, VoIP keeps you connected. Staff can take calls from home or any location with internet access, so customer service continues with no disruption.

Mobile-friendly tools

VoIP works across mobiles, laptops, and tablets. Staff can answer calls on the move or switch between devices without losing connection or call quality.

Integrated systems

Top VoIP providers offer seamless VoIP integrations with tools like CRMs, calendars, and helpdesk platforms. This reduces manual input, and helps your team work more efficiently.

HD call quality

Expect consistently clear, high-definition voice calls with no lag or static, even during busy periods or when multiple users are online you will have clear VoIP call quality.

Time-saving automation

Use features like auto-attendants, call routing, and voicemail-to-email to handle calls efficiently and cut down on manual admin tasks.

Performance insights

VoIP analytics and dashboards help you track call volumes, see who’s answering what, and identify trends to improve team performance and resourcing.

Next steps to securing business VoIP phone provider

Getting the best VoIP provider for your business is fast and hassle-free. Just follow these simple steps to get connected:

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Business VoIP provider FAQs

Our experts answer your most common questions about business VoIP providers.

What’s the cheapest business VoIP provider?

The most affordable provider will depend on your business needs. Some offer low-cost plans for small teams, while others include more advanced features at a higher price point.

Our business VoIP experts can advise on the cheapest provider given your requirements.

Can I keep my current business number with a VoIP provider?

Yes, most providers allow you to keep your existing number through a process called number porting. It’s usually handled during setup, so your customers can continue calling the same number without any interruption.

Visit our guide to business VoIP installation to understand the process.

How do I switch from a traditional phone provider to a VoIP provider?

Switching is straightforward. Once you choose a VoIP provider, they’ll guide you through transferring your number and setting up your new system.

Many offer remote onboarding and plug-and-play options to make the transition seamless.