white hero logo Hosted IP Telephony Is a cloud PBX right for your business?

Flexibility, functionality and cost are the three biggest reasons UK businesses are switching to Hosted PBX phone systems.

The End of ISDN The perfect time to move to IP telephony

BT have announced that they will be switching off ISDN in 2025 and no longer selling it as of 2020.  This means businesses need to start thinking about moving to IP telephony. This is good news for UK SMEs as expensive proprietary PBX systems, restrictive licensing, unjustified maintenance fees, and costly ISDN lines all add up quickly. Older phone systems also do not easily support new telephony features that will improve your users experience and productivity while facilitate the growing need for flexible remote working. At Certum we offer a better more modern solution.

Hosted VOIP A better more modern solution

Our VoIP phone system offerings are fully integrated communication solutions that give your business increased scalability and flexibility. Certum Hosted Voice is a fully cloud based VOIP system which is backed by BT and offers the scalability and functionality that has become expected from a modern-day phone system. Certum Hosted Voice Licenses includes quality of service, competitive pricing, superior handsets, free minutes and much more flexibility and functionality than any other system.

Hosted VOIP A better more modern solution

Hosted Basic Features

Hosted Basic Features

A simpler, cost effective, feature rich VoIP system for those looking for a reliable phone system without the enterprise features.

  • Free Desk phone (Polycom VVX 301/Polycom VVX 411/Yealink W52P)
  • Free inclusive minutes to 01/02/03/07 numbers per user
  • Voicemail
  • Direct Dial
  • Hunt Groups
  • Automated Night Service
  • IVR Menu Service
  • Music on Hold
  • Mobile App for anywhere working
  • 3 way calling
  • Video Calling

Hosted Premium Features

Is it worth 5 minutes of your time?

With a quick phone call, we can begin the process of getting to know your business and determine whether the services we offer could help you reach your goals. Enter your details and we’ll get in touch for a no obligation chat about your business.

This form collects your name and phone number so that we can contact you. Check out our Privacy Policy for the full story on how we store, process and protect your submitted data. If you choose not to consent, please use an alternative contact method shown on our Contact page.



This form collects your name and phone number so that we can contact you. Check out our Privacy Policy for the full story on how we store, process and protect your submitted data. If you choose not to consent, please use an alternative contact method shown on our Contact page.