Everything you need to know about the 2025 ISDN Switch Off

Find out how your business should prepare for this momentous change in our FREE guide:

In our FREE educational guide you’ll discover:

✔ What is the 2025 ISDN Switch Off?

✔ Preparing for 2025

Checking your bills

Claiming unused lines


What is VoIP?

Upgrading your connectivity 

✔ Choosing a telecoms partner

✔ How to get a FREE IT & Telecoms Audit 

2025 ISDN Switch Off Guide

Why you need to know about the BT ISDN Switch Off now

If you start preparing for the analogue switch off now, you can make sure the new system you eventually adopt meets your requirements and gives you all the advantages of flexible, cost-effective VoIP telephony.

With the countdown to 2025 underway, it’s the perfect time to start getting your telephony affairs in order. When you have a better understanding of what you’re actually getting, and for how much, you’ll be in a better position to understand what a VoIP service could do for your business.


BT ISDN Switch Off Image
2025 ISDN Switch Off Guide

Is your business ready for the Openreach ISDN Switch Off?

With a smaller supplier, you’ll get good local knowledge and the personal care that helps your business grow.

At Express Telephony, every customer gets the same high level of support, regardless of their size or how much they spend with us.

Download our FREE GUIDE to get the low-down on the 2025 switch off and everything you need to consider as you prepare for a new way of communicating.


Express Telephony, 2021