Your guide to the ISDN switch-off

The big ISDN switch-off has already begun. Time is running out as BT look to switch off all connected systems using ISDN by the year 2025. Our advice is to act now and make the switch from ISDN to a cloud-based solution such as VoIP and SiP to ensure your business is supported by the right connectivity network by 2025.
This guide will break down everything you need to know, so that your business can be prepared for when that time arrives. Don't wait!

  • What is ISDN?
  • Why is it being switched off?
  • What equipment does the ISDN switch off impact?
  • What is replacing ISDN?
  • How to make the switch


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