VoIP Providers: The Ultimate Guide

Understand The Technology. Find Out How To Get the Best Deal. Discover The Leading UK Business VoIP Providers.

What This VoIP Providers Guide Covers

The award winning experts at Amvia have compiled the complete business guide to VoIP providers. This guide covers how they work, how much they cost, what factors impact cost, the best business VoIP providers, which providers have the shortest and longest lead times, the most reliable networks, coverage and much, much, more. If you wish you can navigate to the relevant sections using the shortcuts below.

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Put simply, VoIP service providers are managed service, VoIP experts, that enable your business to use voice over IP. The VoIP providers will deliver your phones, your switch, and even your data link if you require, for a monthly rental charge.

VoIP providers will asses the needs of your business. They will help you understand the type of VOIP system you need. VoIP service providers will help you spec the number of calls and bandwidth you'll require to make high quality voice calls. They will check your internet access to make sure you are VOIP ready. The provider will wrap all of their services up into a monthly fee. This fee usually covers phones, the VoIP system and an allocated number of call minutes per month.

voip service provider

A VoIP phone system allows your business to make and receive calls over the internet using voice over IP. Voice communication is converted into data packets which are transmitted over your data connection instead of the public switched telephone network (PSTN).

A traditional phone system private branch exchange (PBX) uses the PSTN to initiate and terminate voice calls. Telecoms providers charge per minute for the use of this PSTN.

A VOIP phone system does not use the PSTN.The VoIP system sends voice calls over the data network. This is why call costs between phones on the same VoIP system are free.


what is a voip phone system?

The 5 main advantages of VOIP are:

    • Ease of Management

    • Improved Communication

    • Feature Rich Applications

    • Lower Operating Costs

    • Better Business Integration 

A VOIP phone system is cheaper to run, yet provides you with far more functionality. These advantages are expanded on below:



what are the advantages of voip?
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Easy to set up; it's simple to add and remove users; creating hunt groups is quick. You used to have to separately wire a phone system. Program changes using a consultant. Add hardware cards and ISDN lines to expand. All this is simplified with VOIP.

chat (1)


Your staff can be reached wherever they are on landline, desktop, tablet or mobile. Connect your VOIP system with email, CRM & your support desk. You make your business more responsive by enabling your employees to remain responsive and available.



All of the latest technology is available, as standard: voicemail, conference calling, messenger, video chat & auto attendant. Advanced features such as Office 365 integration, file sharing, HD video, content suggestion, virtual meetings and whiteboards are available too.



VoIP providers can offer lower call costs than traditional phone system providers. The savings don't stop there though! Buying a PBX used to be expensive, most VoIP providers charge a monthly rental. Management used to mean consultants but now you can manage your own system through a web portal.

There are 3 main elements of cost in a phone system. The calling hardware or software, the call costs, the management cost.

VOIP phones are now the same price as PSTN phones, calling is cheaper over VOIP as some calls are free and call bundles are comparable.

Managing VOIP in an office is cheaper than a PBX phone system. If you have 1 or 2 phones the management cost is comparable.

Overall VOIP is marginally cheaper than a landline if you have 1-5 handsets. For 5-200 handsets VOIP is much cheaper.

is voip cheaper than a landline

A business VOIP system costs around £10/user/month. In addition you will pay around £100/user for VOIP hardware. Therefore a 15 user VOIP phone system will cost around £1500 to set up and around £150/month. This will include 5000 minutes per user per month to UK landline, UK mobile, and 03 numbers.

The 4 main components which determine how much does voip cost are explained below.

how much does voip cost?



What type of handsets do you require? The better and more feature rich the handset, the higher the cost. Handsets range from £25-£500+



How many users will be using the system. More users cost more money. Budget for £10/user/month.


How much usage will there be? If you call internationally or premium rate numbers you may need a tailored call package.


What functionality do you need? A call centre solution will cost far more than a basic SME VOIP system.

The best VoIP provider, is the provider which offers the perfect fit, for your business. Amvia are experts at comparing the market, we do this every day. By analysing your needs and your budget, we can quickly recommend 2 or 3 of the best VOIP providers for your business.

Using Amvia will save you time and money. Best of all we do not charge you for any pre-sales consultations. Amvia is a multi-vendor VOIP provider so we can create the best VOIP system according to your most important needs. Better still we can install and manage the system for you. That's what makes us the best business voip provider.

best voip provider for business

There are over 50 UK VOIP Providers, the major VOIP providers are BT, Virgin, Amvia, Surevoip, Skype, Vonage, Ring Central, 8x8, Mitel, Gradwell, Lily, Telappliant, Voip Studio, Voipfone and Circleloop.

The VOIP providers in the UK offer a range of voice over IP telephony for businesses. Most providers have 3 types of VOIP package, a light use low user package, an SME 5-10 user package and a Premium higher usage package. The major UK VOIP providers are covered in the list below.

voip providers
BT Voip Provider

British Telecom offer BT Cloud Phone, BT Cloud Voice & BT One Phone. Find out more at: https://business.bt.com/products/business-phone-systems/voip/

virgin Voip Provider


Virgin offer Enterprise Cloud Voice and SME Cloud Voice. Find out more at: https://www.virginmediabusiness.co.uk/applications/voip/

surevoip Voip Provider

Surevoip offer 3 types of VOIP service; SureVoIP Hosted Basic; SureVoIP Single User and SureVoIP Hosted VoIP System. Find out more at: https://www.surevoip.co.uk/products/hosted-voip

skype Voip Provider

Skype for business offer a VoiP solution as part of Microsoft Office 365. Find out more at: https://www.skype.com/en/business/

vonage Voip Provider

Vonage offer 3 plans "Select", "Professional" and "Ultimate". Find out more at: https://www.vonage.co.uk/business/

ring central Voip Provider

 Ringcentral offer 4 packages "Entry", "Standard", "Premium" and "Ultimate". Find out more at: https://www.ringcentral.co.uk/

8x8 Voip Provider

8x8 offer a variety of "X-Series" plans. Find out more at: https://www.8x8.com/uk/voip-business-phone-systems/by-business-size/small-business

Mitel Voip Provider

Mitel offer 3 business VOIP services, "Essential", Premier" and "Elite". Find out more at: https://www.mitel.com/en-gb#mitel

Gradwell Voip Provider

Gradwell offer 3 voip packages: "Single User", "Multi User" and a package with calls included. Find out more at: https://www.gradwell.com/calls/

lily Voip Provider

Lily Communications offer a hosted phone system called Lily Cloud. Find out more here: https://www.lilycomms.co.uk/solutions/business-phone-systems/hosted-phone-systems

telappliant Voip Provider

Telappliant offer 4 types of VOIP provider services, Starter, Plus, Premium and Enterprise. Find out more here: https://www.telappliant.com/products/communications/phone-systems/

voip studio Voip Provider

VoIP Studio have 3 different VOIP plans, "Pay As You Go", "National" and "International". Find out more here: https://voipstudio.com/pricing/gbp/

voipfone Voip Provider

Voipfone offer 2 packages, Pay As You Go & Unlimited. Find out more here: https://www.voipfone.co.uk/

circleloop Voip Provider

CircleLoop offer 2 packages, Pay As You Go & Unlimited. Find out more here: https://www.circleloop.com/pricing

The best UK business VOIP providers offer a package that is most suited to your business. This comparison enables you to quickly identify which UK provider will most suit your business needs.

top rated and best uk business voip providers
BT Voip Provider

240 X 60 OK rating

BT Cloud Phone

Basic £13/user
Connect £18/user
Collaborate £23/user
500 minutes per user included
24 month contract


virgin Voip Provider

240 X 60 OK rating

Virgin Cloud Voice

Add on call minutes per user
36 month contract
surevoip Voip Provider

240 X 60 OK rating

SureVoIP Hosted

Single User £5/user
Hosted Basic £11/user
Hosted VoIP System £20/user
Add on call minutes per user
3 month contract
skype Voip Provider

240 X 60 OK rating

Skype Business

Enterprise 1 £6/user
Enterprise 2 £17.60/user
Enterprise 3 £30.80/user
60 minutes per user included
12 month contract


vonage Voip Provider

Recommended rating

Vonage Business

Select £9/user
Professional 2 £12/user
Ultimate £16/user
Unlimited calling with Ultimate
12 month contract


ring central Voip Provider

240 X 60 Recommended rating

Ringcentral Office

Entry £7.99/user
Standard £14.99/user
Premium £19.99/user
Ultimate £24.99/user
Ultimate 4000 minutes/month/user
30 day contract 


8x8 Voip Provider

240 X 60 Recommended rating

8x8 Virtual Office

X2 £18/user
X5 £32/user
X8 £45/user
Unlimited International Calling
12 month contract


Mitel Voip Provider

240 X 60 OK rating

Mitel Cloud

Essentials From £13.59/user
Premier From £17.84/user
Elite From £23.79/user
Unlimited Calling
12 month contract


Gradwell Voip Provider

240 X 60 OK rating

Gradwell VoIP

Single User £5/user
Multi-User £10/user
VoIP + Calls £20/user
3000 Landline 1000 Mobile With VoIP + Calls
12 month contract


lily Voip Provider

240 X 60 OK rating


Custom Quote/user
Unlimited Calling
12 month minimum contract


telappliant Voip Provider
240 X 60 OK rating

VoIP Office

Starter £4.99/user
Plus £11.99/user
Premium £17.99/user
Add on minutes/month/user
12/24/36 month contracts


voip studio Voip Provider
240 X 60 OK rating


PAYG £4.99/user
National £9.99/user
International £19.99/user
2000 minutes National/International
30 day contract


voipfone Voip Provider

240 X 60 OK rating


PAYG £1/user
Unlimited £19.99/user
Unlimited calling option
12 month contract


circleloop Voip Provider

240 X 60 Recommended rating


PAYG £4.99/user
Unlimited £9.99/user
Unlimited calling to UK, USA, Canada, Ireland
30 day contract


Performing a VOIP comparison is proven to be the most effective way of reducing costs and ensuring you get the best deal. VoIP providers are continually ammending their prices and adding functionality.

Use Amvia's experts to identify the right deal, at the best price.

Did you know it is often cheaper to buy a VoIP service through a wholesale partner than directly from the VoIP provider? With 100s of VoIP providers in the UK, comparing providers can be an arduous task. That's why Amvia built AmviaSearch™, a VoIP comparison tool enabling you to search all providers and get side-by-side pricing in a couple of clicks. 

voip providers comparison

How The VoIP Comparison Works

It's The Easiest Way To Find The Best Deal At Your Business Location

select your location to compare
Choose number of users, the functionality you need, whithhin the budget you set.
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Compare VOIP Providers
Compare All Prices Side By Side
voip comparison
Select VOIP Provider
Select The Best Provider That Meets All Of Your Needs.

Compare All These Providers, In A Couple Of Clicks

Make a voip provider comparison simple. In just a couple of clicks you can check providers and get a side-by-side comparison of prices.


The best VOIP phone is the ideal phone for your communication needs. We have categorised budget, value and feature rich Phones. The best budget range is the Yealink SIP range, the best value phones are the Htek UC range, the best feature phones are the Polycom Soundpoint range.


Find out more about each of these phones in the detailed breakdown below.

what is the best voip phone?

The best VOIP phone if you are on a budget is the Yealink SIP range.

Although the Yealink SIP range is designed for buyers on a budget it still offers a lot of value. Target price: £40/handset


  • Price
  • Call hold
  • 3 way conferencing
  • SMS
  • Anonymous calling


  • Single SIP interface
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The best VOIP phone if you are looking for value for money is the Htek UC range.

Although the price of this phone is relatively modest, the feature set is amazing when compared to the cost. This voip phone looks good, works well, is feature rich, and won't break the bank. Target price: £79.50


  • 3.5-inch color screen
  • Context sensitive actions.
  • Headset compatible with RJ9 port
  • 5 way conferencing


  • None
htek uc voip handset

The best VOIP phone if you are looking for features is the Polycom Soundpoint range.

The Polycom SoundPoint IP range of VOIP phones are suitable for medium and large businesses with busy receptions, call centres and complex processes. Target price £75-400. 


  • Very high quality speaker and mic
  • High definition options
  • imple and easy to use
  • Expandable
  • Call centre features
  • Advanced hunt groups and reception support


  • Cost
  • Complex features mean can be complicated to set up


polycom soundpoint voip handset

The top 5 manufacturers of DECT wireless or cordless VoIP phones are SNOM, Siemens, Yealink, Polycom and Panasonic. Prices range from £65-£200 depending on the quality of the handset, the brand and the functionality. Our pick for value is the Yealink with a target price of £85.

You can view an overall review of each of these DECT phone manufacturers by reading on below.

yealink dect business voip phone


SNOM make beautiful phones that work well. Worth considering if your business requires a cordless DECT phone solution.


  • Reliable and strong signal when linked to an M700
  • Best in class contender
  • Great signal strength and coverage
  • Robust hardware
  • Auto provisioning, easy to add to a base station


  • Expensive
  • Base stations hard to replace
snom voip dect phones


Siemens Gigaset are a best buy and if your business is considering a DECT VOIP handset they must be on your list to consider. Market leading technology backed by German quality.


  • Long range
  • Excellent sound quality
  • Easy to use
  • Stylish product


  • Not the cheapest handset
  • Menu can be cumbersome
siemens gigaset voip dect phone


Yealink is a brand synonymous with VOIP, business telecoms and great value. If budget is a primary concern for your choice of DECT cordless VoiP phone Yealink should be on your list.


  • Low cost and great value
  • Solidly made
  • Easy to set up
  • Good range


  • Lower battery life than premium brands
  • Menu and functions a little dated


yealink dect cordless voip phone


Panasonic DECT phones are good quality. If your business operates outside or in a tough environment, the rugged DECT phone options may offer a robust choice.


  • Automatic volume increase when noisy background detected
  • Surrounding noise reduction feature
  • Bluetooth capability
  • Dust, splash, shock protection options


  • Relatively short talk time of 5 hours


Polycom are a strong brand in the business VOIP space. Although their DECT cordless phone is functional, Siemens, Yealink, Panasonic and SNOM are better options.


  • 10 hour talk time
  • Good call quality


  • Rather dated
  • Heavy handset
  • Delay on menu
  • Expensive


polycom voip dect phone

The top 5 business VoIP softphones are made by Broadcloud, Vonage, Mitel, Skype and Ring Central. A softphone is an app that you use on your mobile or office computer and allows you to make, receive, transfer calls just like a desk based phone.

You can view a review of each of the softphone apps from Broadcloud, Vonage, Mitel, Skype and Ring Central by reading on below.


voip softphone


240 X 60 Top Rated


The Broadsoft softphone client "UC-One" is a slick, technologically advanced, application for iOS, Android, Mac & Windows. It has to be one of the considered solutions for any business serious about VOIP.

Here's how Broadsoft describe UC-One:

UC-One is an easy-to-use cloud collaboration app that lets you call, message, and meet with anyone from any device in full HD Video. It works on Mac and Windows desktops, Android and iOS tablets and smartphones. 

broadsoft voip softphone client app
broadsoft logo
240 X 60 Top Rated



UC-One Softphone Benefits

Use on your iOS or Android smartphone
Use high-quality HD voice and video from any device or conference room
Communicate quickly and concisely with 1-1 and group chat functionality.
Screen Shot 2019-01-08 at 19.43.57
Improve workplace collaboration and make meetings engaging with HD video, voice, messaging and screen sharing
UC-One works on iOS and Android tablets and smartphones so you can call, message and meet while you’re on the go
UC-One unites with other business apps, to bring you relevant emails and files, so you spend less time searching and more time getting work done


240 X 60 Recommended rating


Skype is probably the most well known VOIP softphone application. After Microsoft acquired Skype you require a Microsoft 365 subscription to use Skype For Business.

Here's how Microsoft describe Skype For Business:

Enjoy the power of communications and collaboration on your desktop with a familiar Skype-inspired user interface.
  • Enjoy full communications with calling, IM, presence, and meetings
  • Real-time collaboration within a meeting
  • Video-based screen sharing for better sharing performance
  • Deep integration with Office and Office 365
skype for business voip provider

240 X 60 Recommended rating

Skype For Business Benefits

Free online meetings for up to 10 people without a subscription.
Share your screen or a file. Give and take control.
Send instant messages during business meetings to offer new ideas.
skype voip
Present with interactive tools, with annotation, highlighting, and laser pointer.
Draft, draw and edit together like being in the same room.
Make your meetings even better with certified USB speakerphones, HD cameras, and headsets.


240 X 60 OK rating


The VONAGE softphone app is a free multi-functional app allowing you to make and receive calls, view your contacts, any missed calls as well as access voicemail.

Here's how Vonage describe their softphone VoIP application:

Vonage Desktop­ App for Business Cloud is a free app that allows you to use your Vonage Business phone service from your computer. Make calls and send messages from your Vonage Business phone number using the integrated softphone, view your contact history with clients, see missed calls and listen to voicemails – all in one easy-to-navigate interface. It's almost like a softphone app, but better.


4 star rating


VONAGE Softphone Benefits

Access all the power of team messaging right from your mobile, web and desktop with VonageFlow
Chat with one or multiple colleagues on the account with group messaging
Save your business contacts with Vonage Business; view them on Mobile App or Desktop­ App
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View call presence of your colleagues on the account
Send and receive messages and calls to any number using your Vonage Business number
Desktop­ App integrates your phone system functionality seamlessly onto your computer for both Mac® and PC users


240 X 60 Recommended rating


Micollab is Mitel's softphone, which is designed to integrate with the Mitel range of business VOIP services.

Here's how Mitel describe Micollab:

With the MiCollab Client Softphone, road warriors and teleworkers can enjoy the same intuitive communications management as Mitel Business IP Phone users from a remote PC or laptop. When remotely connected to the MiVoice Business or Mitel MiVoice Office via a secure network connection, mobile users can make and receive calls as though they were inside the corporate network. The MiCollab Client Softphone also lets users record calls on their computer, add customized ring tones, and configure HID-compliant USB devices through an intuitive user interface. 

mitel micollab
240 X 60 Recommended rating

Mitel Softphone Benefits

Remove the need to flip between multiple apps to get the job done by providing employees with a single application for voice, video, messaging, presence, audio conferencing, mobility and team collaboration
Keep up with projects, stay connected with colleagues, and boost the sharing of knowledge and ideas across business silos. Extend the power of teams beyond your walls so they can easily and intuitively do the same with clients and partners
Get a communications experience that’s consistent across all of your devices. Stop a conversation on one device and pick it up on another. It’s that simple
Screen Shot 2019-01-09 at 15.00.02
With collaboration, conferencing and messaging all rolled into a single, unified service, employees spend less time trying to connect and more time engaged in productive communications
No longer is collaboration limited to huddle rooms and conference tables. Collaborate anywhere, on any device, with the same set of tools and a consistent look and feel. Whether you’re in the office, at home or on the road
Deployment QR Codes simplify the process for deploying devices clients or redeploying them by the users themselves


Recommended rating


Cisco Jabber Should be on your list if you are a medium to large business that values internal and external communication.

Here's how Cisco describe Jabber:

Mobility doesn’t have to limit productivity. Cisco Jabber delivers instant messaging, voice and video calls, voice messaging, desktop sharing, conferencing, and presence. Find the right people, see whether and how they’re available, and collaborate more effectively.



Recommended rating

Benefits Of Cisco Jabber

Improve productivity. Use real-time presence information and instant messaging to reduce delays. View the availability of contacts within and outside of your organisation.
Communicate clearly. Get secure, reliable communications with Cisco Jabber’s soft-phone features, including HD voice and video, plus desktop sharing.
Go where you need to go. Access all of Cisco Jabber’s features while mobile, including video conferencing, with the same ease of use found on the desktop.
Screen Shot 2019-01-09 at 16.27.36
Keep things simple. Access Cisco Jabber directly from Microsoft Office applications. Easily click to initiate chat, voice or video calls, or multiparty conferences.
This new deployment option uses Webex for modern messaging while keeping your existing on-premises calling functionality.
You now have more control with features like meeting roster, participant controls, customizable layouts, and more flexible screen sharing.
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