Free VoIP System & Unlimited UK Calls

Free VoIP system with three year contracts; including installation, training and unlimited UK calls.

Your choice of systems

Yealink W52P Dect & Base

  • Ideal for small business and Soho (up to 5 handsets)
  • High-quality, HD sound
  • Business-essential call features
  • 50m indoor/300m outdoor range

Cisco 8841

  • Support for Cisco EnergyWise™ 
  • 5 line keys & wide band audio and echo cancellation
  • Supports a built-in Gigabit Ethernet switch for your PC Connection

Polycom VVX 450

  • 12 line keys ideal for businesses of all sizes
  • Polycom® HD Voice™ and Polycom® Acoustic Fence™ technologies
  • 2 Gig-E ports and 2 USB ports for media or storage


Why VoIP?

Flexible 

As long as you have access to a broadband connection, you can use your VoIP system anywhere. From your hotel room to the airport lounge, customers and employees can stay in touch by calling your regular business phone number.

All of the traditional call system features you expect are available in hosted VoIP systems, including call hold, call transfer, call hunt, conference calling, find me / follow me, and auto-attendant phone menus. You will also be able to take advantage of voicemails sent to your email.

Cost-effective

Moving to VoIP means only a single network is needed to carry both your voice and data, saving storage space and the equipment costs that come with a traditional phone system. You will also be able to take advantage of inexpensive international and long distance calls.

Feature rich

All of the traditional call system features you expect are available in hosted VoIP systems, including call hold, call transfer, call hunt, conference calling, find me / follow me, and auto-attendant phone menus. You will also be able to take advantage of voicemails sent to your email.

Scale-able 

With VoIP, you can add a line as soon as you add a new employee, and when an employee leaves, you can easily reassign or remove the line. This means you always have the right number of phone lines for your needs, ensuring both cost and waste efficiency.  

Scale-able 

With VoIP, you can add a line as soon as you add a new employee, and when an employee leaves, you can easily reassign or remove the line. This means you always have the right number of phone lines for your needs, ensuring both cost and waste efficiency.  

Due to the efficiency and capabilities of VoIP, BT is switching off ISDN lines in 2025, with purchases discontinued as of 2020. ISDN is not only difficult to expand or downsize, hindering organisational growth plans and/or adjustments to staff turnover, but carries the additional costs of installation and downtime should you choose to relocate. Subsequently, BT has acknowledged that IP (Internet over Protocol) is the future for flexible communication.

How much could you save?

Simply email a copy of your most recent bill to sales@cmmtelecoms.co.uk or directly to your account manager, and receive a free, no obligation quote based on your current telecoms infrastructure - if we can save you money, we will let you know! Or if you would like to provide us with a convenient time to contact you, please get in touch by clicking the big blue button below.

Comprehensive management and support


  • Our VoIP experts will manage the entire process for you; from initial installation and set up to full training, so you can make the most of your new system.
  • Additionally, our knowledgeable support team are in place as an extension of your help-desk. You will be able to contact our team via phone, email, online chat or pop into our office throughout your contract with us. Your query will be dealt with efficiently and effectively, leaving you to concentrate on your business.

Is it easy to migrate across to VoIP?

The ease of migrating from PSTN or ISDN to VoIP will be highly dependent on the scale and structure of your telephony requirements. At CMM, our VoIP experts assist every client in the decision-making process, however complex. Beginning with your free, no obligation quote. Following this, our team can provide professional installation and advice, ensuring you deal with one company throughout.


Whether or not you're currently tied into a contract, we are here to help you plan for the future. Click the big blue button to let us know a time that is best to contact you.

Terms and Conditions apply.