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10 best VoIP providers in the UK

Chances are, you’ve landed on this page because you are interested in finding a hosted VoIP phone for your business.

You’ve made a wise decision.

Did you know that VoIP solutions can save your business up to 70% on call costs? And that’s while having the same features and functionality as a traditional on-premise system.

Plus, with VoIP you can manage everything via a computer app or control panel in a web browser.

This guide will explore the key benefits of VoIP, as well as comparing top-rated UK VoIP providers and products:


What’s on this page?

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What is a VoIP Phone System?

VoIP stands for Voice Over Internet Protocol and refers to the software-based technology which allows businesses to make their telephone calls using a broadband internet connection, rather than through traditional phone lines. Take a look at how it all works:

 

VoIP phones systems convert the sound signal of users' voices into digital data streams, which can then be sent in "packets" over the Internet.

The signal is passed through an Ethernet cable to the VoIP server or gateway, before connecting with the Internet. Investing in a VoIP Phone system means a business has the freedom to use a variety of different devices to make and receive calls, including physical IP phones, computers or laptops, and smart phones.

Once you’ve set up a VoIP phone system, get ready for cheaper domestic calls and low price per minute international calls, too.

VoIP desk phones can either be set up as a new system or integrated into an existing one.

If you’re looking to integrate business phone systems, contact your current system supplier for advice.

In this guide, we've highlighted 10 of the best VoIP phone models in the corded and DECT (cordless) phone categories. Each of them will integrate fully with a VoIP phone system.


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What is hosted VoIP?

With hosted VoIP, the infrastructure is based ‘in the cloud’ rather than on your premises. A service provider owns, manages and maintains the infrastructure in a secure data centre. You pay a monthly fee to use the service. Most businesses find hosted VoIP to be the best option as it’s so easy and low-maintenance.

VoIP Benefits
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Top 10 best UK VoIP provider reviews

The following suppliers offer the best VoIP Phones available in the UK, as reviewed 20th April 2018. Read on for more information about the VoIP services and features of each supplier, and which businesses they are best suited to.

Best 10 VoIP Phone Providers: 2018
4ComBT
Lily CommsTeliqo
VonageFocus Group
RingCentral8x8
BerryMitel

4com Plc

4Com is a successful, fast-growing company. They’ve installed over 9,000 business telecoms systems across the UK so far. 4Com provide hosted VoIP with UK based support, and were a finalist in the National Business Awards for the Customer Focus and Service category.

Supplier Rating: Read Review

What makes 4com’s VoIP phones stand out is their Computer Telephony Integration (CTI) system. CTI seamlessly integrates phone and computer information (such as customer records) for better call handling and customer satisfaction.

Their VoIP product is feature-rich and reliable. Any maintenance issues that do arise can be dealt with by their Bournemouth call centre, or local agents and engineers.


How 4Com VoIP systems can benefit your business:

Comprehensive call reporting

Computer Telephony Integration enabling instant caller information

On-hold marketing messages

Call recording

Easy-to-use auto-attendant feature

Voicemail to email functionality

Easy installation and setup

Excellent UK service and support

Flexible for any size business, ensuring future compatibility

No upfront costs



What Small Business Phone System do you Require?



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Lily Comms

A relative newcomer, Lily Comms has gone from strength to strength within the UK telecoms industry over the last 8 years. They offer a broad range of services with well-priced basic plans, making them suitable for businesses of all sizes.

Supplier Rating: Read Review

Lily Comms currently supply over 2500 businesses. Their fully hosted phone systems are state-of-the-art. Horizon Unified Communications is their primary hosted VoIP product, with fixed and mobile telephony facilities via a high-speed cloud-based portal.

How Lily Comms VoIP systems can benefit your business:

Reliable service with full 24/7 support, training and number porting

An end-to-end single solution

Powerful call handling features

Virtual conference room

Fixed and mobile telephony solutions

Solutions for mobile and home workers

Multi-language auto attendant

Personal call routing

Future proof and feature-rich


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Vonage

Vonage are a leading global provider of cloud-based communications. They have nearly two million customers globally. They offer complete flexibility, with no installation charges, line rental, excessive contractual terms, or upfront costs. Their solutions are scalable and designed for today’s flexible working environment. All you need is a broadband connection and Vonage will take care of the rest.

Supplier Rating: Read Review

Vonage have a UK head office based in London. Their core packages are offered at three levels: for home and small businesses, for offices of two to 30 employees, and for medium and larger businesses.

There are over 40 call features available with Vonage, only some of which are listed below. It really is a comprehensive VoIP telephony service, built with flexible working environments in mind.

How Vonage VoIP systems can benefit your business:

Full call handling features

Call recording with unlimited storage

Hunt groups for incoming calls

Multi-device extensions

Conference and group calling

Choice of UK area code and number, or port existing numbers

Smart working in and out of the office with Vonage’s flexible solutions

App for smart mobile phones, tablets, and desktops/ laptops


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Berry

Berry is the “people’s choice” when it comes to providers of VOIP systems in the UK. Its personalised service and 24/7 support has led to a bagful of awards since it started out in 2011. And its overwhelming customer satisfaction levels online show Berry’s commitment to being the ‘berry’ best.

Supplier Rating: Read Review

As well as offering VOIP services, Berry provide on-premise phone systems - plus dynamic solutions that combine the two. Its handsets look great and offer a range of impressive call reporting and recording features.

Berry provides a scalable, flexible VOIP service that integrates seamlessly with your database. It connects with your CRM tool to equip you with all the info you need to never miss a sale. And Berry's range of collaborative tools aims to bring your team members closer together. Which means happier staff and happier customers.


How Berry VoIP systems can benefit your business:

Around the clock support

Collaborative features to enable team coordination

Comprehensive call reporting

Flexible phone system options

Personal Account Manager

Easy to set up

Highly scalable

Knows the unique challenges faced by UK businesses

Simple and intuitive web and smartphone interfaces



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RingCentral

RingCentral is a world leader in VoIP, with over 350,000 businesses relying on their systems globally. In 2014, they formed a partnership with BT. They now offer a range of products for the UK market to suit almost any budget. Prices start at just £7.99 per user, per month, with a free 30-day trial available.

Supplier Rating: Read Review

US-based RingCentral are an established provider with an excellent reputation. Their constantly improving cloud-based VoIP solutions suit businesses of all sizes, from small local enterprises to multinational organisations.

RingCentral bring highly integrated, innovative, cloud-based VoIP. Of course, some features are only available on the more expensive plans.

How RingCentral VoIP systems can benefit your business:

Choose free-phone, local, non-geographic, or international telephone numbers

Auto-receptionist, music on hold, and user templates

RingMe online link integration

Voicemail to email or visual voicemail

Conference calling

Internet fax facilities

Fully integrated mobile apps

Salesforce CRM integration

Show business phone caller ID on any phone with RingOut


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BT

BT are a household name and the world’s oldest telecommunication company. They serve a range of telephony and TV services to companies worldwide. BT cover everyone from the smallest to largest of companies. They have a range of solutions from fixed lines to VoIP and managed networked IT.

Supplier Rating: Read Review

BT’s cloud-based VoIP phone systems are scalable, with powerful call management features. They offer three core packages:

  • BT Cloud Phone is “plug and play” for up to nine users
  • BT Cloud Voice is more sophisticated for five users or more
  • BT One Phone Office is an integrated mobile and premises operated system for 15+ users or call centres

Each of BT’s hosted lines comes with an inclusive geographic number, with the option of adding more for an additional charge

If you are already utilising BT fixed lines you may find the BT VoIP a cost-effective product to consider

How BT VoIP systems can benefit your business:

Choice of regional phone numbers, or virtual geographic numbers

Full mobile integration, and diversion for remote working

Call forwarding, routing, voicemail and three-way calling

Call monitoring and recording

CRM integration

Cloud-based, with software-based management portal

Instant messenger for employees

Audio and video conferencing


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Teliqo

Teliqo have developed a unique technology for their cloud-based telephony solution. This enables them to offer a highly customisable direct hosted communications service. Customers can deal directly with the technical specialists who created the system, without the need for third party platform providers.

Supplier Rating:

With the benefits and flexibility you would expect directly from the system manufacturer, Teliqo offer a personal service and hundreds of features as standard. They supply thousands of SME’s across the UK.

How Teliqo VoIP systems can benefit your business:

On-site set-up, configuration, and system changes performed by in-house engineers

Completely customisable and adaptable

Unified communications including softphone, messaging and conferencing

Peer-to-peer video

Mobile softphone application

Call recording, conferencing and voicemail

No up-front cost and low monthly fee per user

Scalable from as little as 15 to over 1,000 extensions

Calls charged at near wholesale cost


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Focus Group

Focus Group have grown quickly in the UK from a start-up to an organisation with over 300 staff. Their portfolio of web-based products spans IT, data, and telephony, and offer combined IP PBX telephone and fully cloud-based VoIP solutions.

Supplier Rating:

Focus Group’s main VoIP product is Horizon Unified Communications (from Lily Comms). With fixed and mobile telephony provided by a simple to use web portal, it’s targeted at any size of business. It can be particularly suited to multi-site operations, and those with off-site employees.

Horizon is used by those who need a ‘business continuity solution’, as they describe it, with comprehensive support to continue operating in the event of a major issue. Services can be instantly moved to a backup or diversion plan, without losing functionality or using call forwarding.

How Focus Group VoIP systems can benefit your business:

Combined IP-based and PBX option

Free calls between branch offices and mobile phones

Shared dial plans and directories

On hold, marketing messages, and call forwarding

Only pay for what you use

Cost effective call recording from any location

"One number anywhere" for desk or mobile

Choice of telephone numbers


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8x8

Multi-award winning global telecoms provider 8x8 boast big brand clients worldwide, including McDonalds. Their solutions focus on various sectors including government, healthcare and education. They have over 48,000 satisfied business customers and a full UK HQ.

Supplier Rating:

8x8’s main product focus is on two provisions: Virtual Office and Virtual Contact Centre for call centre operations.

Virtual Office is richly featured and mobile, with extensive analytics for improving productivity. It’s easy to use, and offers a continuous communications services no matter your location.

How 8x8 VoIP systems can benefit your business:

Extension dialling, auto attendant and ring groups

Call recording

Internet faxing

Web conferencing and video meetings

Desktop and mobile applications, or feature rich IP phones

Extensive CRM integration


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Mitel

Mitel are the fastest growing global cloud communications provider serving over 100 countries worldwide. They have over 1800 patents and applications with an excellent reputation for innovation. Their solutions stretch across business communications, contact centre specialisms and cloud services. They have regional offices globally, so pride themselves on ‘global reach, local touch’.

Supplier Rating: Read Review

Mitel categorise their solutions across industry and company size. They offer public and private cloud-based solutions, and combined hybrid cloud solutions for those who need it.

MiCloud is their cloud-based VoIP product, safely housed in multiple data locations to prevent downtime. Users have the same functionality in an office, in the field or working remotely. There are three industry leading packages MiCloud Office, MiCloud Business and MiCloud Enterprise to suit any size business.

How Mitel VoIP systems can benefit your business:

Complete mobile integration

The same features on mobile and desktop

Easily deployed and scalable

Focus on the millennial generation and the tech-savvy

Full CRM integration

Call recording, playback, evaluation and storage

Easily managed voice, IM and email from one screen

Powerful business analytics

Contact centre options and integrations


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Top 10 VoIP Desk Phones

VoIP desk phones work with a cloud-based VoIP, or hybrid IP-PBX solution. They provide physical desk solutions - ie. not softphones - which are headset compatible. They can be used alongside other components from your VoIP phone system provider, such as smartphone applications and desktop computers.

We’ve included our top picks for entry-level, wired VoIP systems and DECT (cordless) VoIP systems below:


5 Best entry-level VoIP office phones

The selection of phones below includes basic, wired models that function a lot like conventional desk phones:


1. Yealink SIP-T21P Entry Level IP phone

Yealink SIP-T21P

Yealink SIP-T21P

This is a great all-round, entry-level IP phone. It has a slightly lower price point than the Grandstream GXP2200 (see below), but offers the same key benefits. Features include: two VoIP accounts, local three-way conferencing, voicemail, message waiting indication, direct IP call without SIP proxy, and phonebook (1000 entries). There is also an extra-large graphical LCD display, providing more visual information at a glance.

Price: £50
Overall Rating:

The Yealink SIP-T21P is the ideal entry-level phone. Cost effective and easy to install, the handset has a clear display as well as secure privacy settings. High-definition audio makes this phone a great choice for offices of all sizes. It also works seamlessly with IP or IP PBX.

Key features:

HD voice, handset and speaker

Group listening, SMS, emergency calling


Phone book and black list

Language selection and caller ID


2. Grandstream GXP2200 Android desktop phone

Grandstream GXP2200

Grandstream GXP2200

This is an inexpensive corded multimedia Android VoIP phone. It features a responsive touchscreen LCD, in addition to hard keys for functions such as mute, voicemail, hold and so on. As this phone uses an Android operating system, it enables access to popular applications, such Skype, YouTube, Facebook, Twitter, and Google Voice.

Price: £80
Overall Rating:

The Grandstream GXP2200 is a modern, feature-rich desk phone ideal for forward-thinking businesses. This VoIP phone will suit all types of organisations. Apps can be downloaded via Google Play Store, or you can create custom ones. It has a 4.3 inch touchscreen LCD.

Key features:

Directory with 1000 contacts

Call history holds 500 records


Call transfer, forwarding and waiting

HD wideband audio


3. Yealink T23GN Dual Gigabit Ethernet IP phone

Yealink T23GN

Yealink T23GN

A well-priced phone with an easy-to-use interface and HD audio. Features include: call hold, mute, one touch speed dial and call forwarding. It also has local three-way conferencing, ring tone selection and import, and a local phone book with 1000 entries.

Price: £75
Overall Rating:

The Yealink T23GN is a full featured IP-PBX phone which accepts three lines, has caller display and anonymous call rejection. It’s a good all-round VoIP desk phone for any office, but especially small to medium sized businesses.

Key features:

Large directory

Extensive features


Dual gigabit ethernet ports

132 x 64 white backlit display


4. Polycom VVX 600

Polycom VVX 600

Polycom VVX 600

The Polycom VVX 600 is a more advanced VoIP desk phone option. It gives exceptional call quality and has a large, very responsive touchscreen. This corded phone supports up to 16 lines, video conferencing and playback through the use of external USB cameras. It also features HD voice technology.

Price: £215
Overall Rating:

The Polycom VVX600 is one of the most popular VoIP phones available. The bright display enables users to manage their calendars, and receive meeting and catch up reminders, all on their phone handset. This capability saves time and boosts productivity.

Key features:

4.3" LCD touchscreen

Bluetooth integration


HD voice quality

Dual USB ports


5. Mitel IP485G

Mitel IP485G

Mitel IP485G

A general office VoIP desktop phone, the IP485G has a backlit colour display with a searchable, expanded directory. It has built in visual voicemail alongside standard transfer, conference call and on hold features.

Price: £75
Overall Rating:

The Mitel IP485G phone is ideal for an office-based professional. It has a full duplex speakerphone, visual voice and conferencing capability, and a 10/100/1000 ethernet switch for Gigabit speed.

Key features:

8 lines

Expanded call history


LED indicators

480 x 272 backlit colour display


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Best DECT VoIP Office Phones

VoIP DECT phones are cordless. This makes them more mobile than traditional VoIP telephones.

The most innovative phones have a wide range of features including large colour LED displays, SMS facilities, and integrated phone books. VoIP DECT phones are manufactured by many of the big telecoms companies including BT, Mitel, Siemens, Panasonic, Cisco and Gigaset.

Here’s our pick of the top five around today:


1. Panasonic KX-TGP600 DECT Phone

Panasonic KX-TGP600

Panasonic KX-TGP600

The Panasonic KX-TGP600 suits small to medium sized businesses which need a more mobile desk phone. It’s a wireless VoIP DECT phone which can fit eight handsets to each base and will handle eight simultaneous calls.

Price: £85
Overall Rating:

This phone has a vivid colour screen and a long battery life. SRTP (Secure Real-Time Transport Protocol) is available for extra phone security. The phone has an excellent and extendable range.

Key features:

Range of 100-200 feet

Noise reduction technology


200 hours standby battery life / 11 hours talk time

Repeaters available to extend connection range

2. Mitel Aastra 632 DECT Phone

Mitel Aastra 632 DECT Phone

Mitel Aastra 632

The Mitel 632 DECT is a hardy DECT business phone. It can be used outside, or in industrial environments. It’s perfect for factory floors and care or medical facilities, as it’s easy to clean and complies with hygiene requirements. It also has a sensor alarm and an emergency call key suited to hospitals or highly secure areas.

Price: £85
Overall Rating:

A superb quality workplace phone for both general and specialised environments. It has a colour TFT display, extensive telephone book, ambient noise filter, and a mini USB PC interface, and many more features. The Mitel 632 has all the functionality and navigation you would expect, plus the added benefit of its robust design for certain workplaces.

Key features:

12 hour talk time

Man down, no movement and escape alarm


Hands-free operation

Compatible with high hygiene workplaces


3. Gigaset SL785 DECT phone

Gigaset SL785 DECT Phone

Gigaset SL785

The Gigaset SL785 is ideal for home and office-use. It has positive reviews for its touchscreen interface with integrated answering machine (45 minute recording capacity) and ECO DECT technology for reduced battery and power usage.

Price: £195
Overall Rating:

The slick design makes this model perfect for modern businesses and the clear display offers a number of functionality benefits. Other advantages include: directory transfer options and the ability to store multiple numbers under one directory entry.

Key features:

Bluetooth enabled

Base handset locator


Call recording

15 hour talk time


4. Yealink W52P

Yealink W52P

Yealink W52P

With a 1.8 inch colour display and intuitive user interface, the Yealink W52P offers all the standard features you would expect including intercom, transfer, call forwarding and three-way conferencing.

Price: £90
Overall Rating:

With a 1.8” colour display and intuitive user interface. The Yealink W52P offers all the standard features you would expect including intercom, transfer, call forwarding and three-way conferencing.

Key features:

Exceptional HD sound

Highly scalable


Up to 4 simultaneous calls

Up to 5 VoIP accounts


5. Grandstream DP720 DECT IP Phone

Grandstream DECT IP 720 phone

Grandstream DP720

This is an inexpensive VoIP solution that gets the job done. Up to five phones can be attached to a single DECT hub and up to 10 SIP accounts per handset. It’s a full HD audio phone with a long range that’s perfect for small businesses or as a home phone.

Price: £50
Overall Rating:

The Grandstream DP720 is a high quality DECT wireless IP phone designed for homes and small business. It has three-way local conferencing, phonebook, and DECT authentication and encryption technology. With a modern design and high-end features, it’s a great phone for a great price.

Key features:

10 hour talk time

80 hour standby mode


300 meter outdoor range, 50 meter indoor range

5 phones per DECT base


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Benefits of VoIP for a small business

VoIP Benefits for small business

VoIP brings several benefits for businesses of any size:

1. Reduce costs

The adoption of a VoIP (voice over internet protocol) telephone system for any small business can drastically reduce both their capex (capital expenditure) and opex (operational expenditure).

In other words, not only is it a great long term investment, but it will start saving you money on your calls from day one.

Providers such as One2Call offer free inter-site communication, which is hugely beneficial for businesses looking to expand. Providers offer VoIP to UK landline calls for as little as 1p per minute.

2. Flexible and mobile communications

VoIP systems can work from any location with internet, or via a VPN (virtual private network). This makes them a great choice for the smaller businesses with mobile or staff who work from home. Telephone numbers can be retained and will remain directly associated with the main business office, allowing employees to use the same service.

One good example of what UK VoIP providers can offer the small business owner comes from Voipfone who deliver up to 800 different extensions (per account).

These can be placed in any physical location, in the same office or internationally, and calls will be free of charge.


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3. Enable growth

VoIP offers the potential to scale up operations as the business continues to grow.

Additional ports can be easily configured and brought online to provide for an extended service, or withdrawn and taken down when the capability is no longer needed.

This can all be achieved seamlessly without disruption or down time, ensuring that communication between employees and customers will not suffer.

The V-Plan Business VoIP package from Vonage (from £9.99 per month) provides the user with 3,000 inclusive minutes to any UK landline in addition to mobiles and landlines in Hong Kong, China, Singapore, Canada and the US. Additional lines can be added at any time. This makes it easy for your business to expand into new territories.

4. Connect to the future

Studies have shown that 41% of UK businesses were already using VoIP phone systems in 2012 and that 7 out of 10 would be adopting the service in the near future. With call charges of up to 50% lower than BT and other providers, it’s no wonder savvy small businesses are making the switch.


VoIP Phone Accessories

Some businesses choose to invest in VoIP headsets, which have a number of benefits including increased employee comfort when making long calls, freeing your hands for other tasks such as using a computer while you are on the phone and freedom of movement.

The latest models have significantly improved sound quality compared to earlier handsets. There are a number of different VoIP headphones available with prices starting from around £20 per set.

Other accessories available include conference call sound stations, and cases to protect cordless phones. There are a wide range of suppliers of VoIP telephone hardware, so shopping around is always a good idea.


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VoIP: The Verdict

As we’ve already seen, a VoIP service offers many important benefits that will help you run a more efficient, flexible business. To find out more about the costs and services available from service providers, fill in this short form and we'll gather the most competitive prices for you - for free!