Top 10 VOIP Service Providers in London

Top 10 VOIP Service Providers in London

Several VOIP service providers in London are helping small and medium-sized businesses to grow further in the market more efficiently.

VOIP internet telephony is now spread all over the world that helps small and medium-sized businesses to learn about virtual telephone services.

Let’s learn about the Top VOIP service providers in the UK…

Here are the Top 10 VOIP Service Providers in London:

Several VOIP service providers in London help businesses grow further easily to make a good impact on the market.

voip service in london


Iconoffices are one of the leading virtual office service providers that provide UK virtual mobile Numbers and Virtual landline phone numberservices with SMS to Email and Call Answering Services.

With the UK Mobile Number services from icon offices, you will get

  • Mobile Apps & PC App included. Desktop handsets available
  • Free UK & International Calls
  • Free Call Recording
  • Free SMS to Email
  • Works anywhere in the world
  • Bespoke Set Up Available
  • Free Small Office & Call Centre Set Up
  • Ring Groups
  • Free Voicemail
  • 24/7 Call Answering

You can thrive in your small business with these VOIP services and grow furthermore efficiently.


Gradwell VOIP system from the UK gives everything starting from VOIP systems to connectivity services for small or medium-sized businesses.

Gradwell is a cloud communication provider, delivering end-to-end solutions to businesses of all sizes.

Their Services include SIP trunking, hosted phone systems, and connectivity, which had their beginnings in the cloud and are constantly adapting thanks to the creation of new intellectual property.

Their VOIP services:

WaveBuilt for Small Business:

It’s cheap, easy to use, and packed with features, all at a fraction of the cost of similar solutions.

  • Low cost
  • Fast setup
  • Simple per-user pricing
  • Softphone and browser calling
  • Plug and play hardware

3CX Flexible and Cost-Effective:

The competitive cost for simultaneous calls and the robustness and adaptability of the system makes it an excellent option for any business.

  • No per-user costs
  • Powerful feature set
  • Competitive concurrent call pricing
  • Softphone and browser calling
  • Compatible with many SIP devices

Microsoft Teams Direct Routing/True Unified Communications:

With Direct Routing, Microsoft Teams may become a fully-fledged unified communications platform with integrated calling at a much lower cost.

  • Access truly Unified Communications
  • One system for all collaboration
  • Enable a fully-remote workforce
  • Huge savings over Microsoft calling
  • Integrate existing PBXs with Teams


Mitel is one of the good VOIP systems to upgrade your communication technology and make your business grow further with ease.

  • Free trial of a cloud-based VoIP phone system including calling, conferencing, chatting, teamwork, and a call center for three months
  • Available communication methods include but are not limited to: speech, text messaging, electronic mail, fax, interactive voice response, chatbots, and third-party platforms.
  • In terms of adaptability, Mitel Business Analytics provides: From one user to a thousand or from one site to a hundred
  • Simple to set up, adapt, and utilize
  • Mitel Flex is a mobile solution that allows for greater flexibility while using smartphones, softphones, and tablets.

4. 8×

8×8 empowers workforces worldwide to connect individuals and teams so they can collaborate faster and work smarter.

  • Unlimited domestic calling for £8 per month with our business phone system!
  • Free and unlimited video chatting and meetings
  • An automated greeting, voicemail, and a list of available extensions
  • Integration with G Suite, Office 365, Outlook, NetSuite, Salesforce, and Zendesk
  • Online Faxing Without Limits


They’ve built the perfect workplace with our scalable, low-cost cloud-based conferencing and document-sharing tools for increased productivity. Our options range from a full-contact center to a simple cloud phone system with group chat and video conferencing for any size company.

  • Pricing begins at $19.99 a month per user.
  • You can use the same number for voice calls, group chats, and teleconferences. Support is available around the clock.
  • It should be possible to convert voicemails to text mechanically.
  • Detailed logs of all incoming and outgoing calls, as well as faxes, are maintained.
  • Allows for an infinite number of audio conferencing events, each with support for up to a thousand participants.


Intermedia is a cloud communications firm that helps over 130,000 businesses connect better – through phone, video conferencing, chat, contact center, corporate email and productivity, file sharing and backup, security, archiving, and more – from wherever, anytime. We aspire to eliminate the need for numerous communications service providers with a flawlessly integrated range of communications and collaboration products – all supplied through one highly reliable and secure platform.

  • HD video conferencing allows for face-to-face meetings with a maximum of 4 participants and 4 video feeds.
  • Collaboration and decision-making time are both boosted by real-time screen sharing.
  • Using the built-in team chat tool, you may have real-time conversations with other team members.
  • Complete data, media, and mobile device backup in real-time
  • Voicemails are transcribed and made available via email or a mobile app.


We promise your company the most cutting-edge and dependable phone system you’ve ever used by building on top of the most modern, resilient, and scalable cloud communications infrastructure on the market.

  • Prices vary from £8.99 per month per user to other options.
  • No cancellation fees, no long-term commitments
  • No cost for call forwarding or rerouting
  • Free voicemails for life
  • There is a 14-day free trial time period that does not require a credit card.


Virtual Landline provides low-cost call plans for single users, regardless of whether they need a local or national phone number in the United Kingdom.

  • Plans start from £5.95 per month
  • Numerous options for local UK dialing.
  • Simple call forwarding to any phone, wireless, or landline
  • Five pounds worth of free phone calls as a token of our appreciation
  • Brings you peace of mind and saves you money by avoiding roaming fees while traveling overseas


SwitchboardFREE gives you the kind of professional inbound call management solution generally associated with large businesses – without any capital investment – whether you’re in an office, at a customer’s site, at home, or on the road with one of our free mobile apps. The greatest part is that our phone numbers are toll-free, and we don’t charge anything more for this service.

  • Telephone access code 0843 or 0844 is free of charge.
  • Rates for local and metropolitan area codes start at £6.96 per month.
  • Free unlimited call forwarding to up to 5 fixed or mobile lines
  • Easy-to-use online and mobile app for total command
  • Offers a variety of music on hold choices for enhanced aural branding


To be competitive in today’s business world, you need to be able to work effectively no matter where you happen to be located. Benefit from a full Unified Communications platform with our extensive selection of business communication solutions. Gain the advantages of mobile communication and a more fluid work schedule with the help of modern tools. Your video or audio call, or IM chat can be set up whatever you choose.

  • Users can connect via a variety of methods, including traditional phones, the web, softphones, and mobile apps.
  • The auto-attendant is able to route calls efficiently.
  • The option to connect through a phone, the web, a softphone, or a mobile app increases mobility.
  • Make use of on-hold time to promote your business with personalized messages and tunes.
  • Spend less time keeping track of multiple service providers by consolidating them into one.
  • Assistance is available at any time of day or night.

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