Analogue & ISDN Shutdown

Openreach announced that they would be removing the analogue and ISDN network in 2025.  Find out what this means for your business. 

What services are affected?

In 2025 the last elements of Openreach’s analogue and digital ISDN copper network will be turned off as an all-IP network replaces these legacy services. The impact on telephony and broadband services is far reaching so you need to know how it will impact you. The project has already begun so don’t wait to consider your options.

Basically, anything currently using a copper line. The easiest way to comprehend the extent of this major project is to consider that every single Openreach service utilising copper lines will be affected. The most apparent services are analogue telephone lines (PSTN) and digital lines (ISDN) but it doesn’t stop there. It’s not just about telephone services. Any service that uses this infrastructure will also be impacted.

Analogue voice telephone services and any service that use these lines including Dial up devices, fax, alarm systems, modem, building management systems, lift lines, PDQ machines.

ISDN 2e and ISDN 30e lines which are mainly used by phone systems. Broadband services that run over an analogue telephone line e.g. ADSL and also FTTC Fibre Broadband

What is happening and when?

Openreach will be switching off services at each exchange in turn. The first stage is to announce a “stop sell” date for each exchange. After this date no new affected services can be ordered and changes to existing services, no matter how minor, cannot be made.

There are already over 200 exchanges that will be in the Stop Sell phase by January 2023. 

Our mission

Centric Communications will ensure that our customers are fully aware of the impact of the WLR switch off. We will offer a choice of technologies to ensure every customer has a suitable service for the future for both connectivity and telephony. We will ensure that every customer migrates to the new services as smoothly as possible.

We will keep our customers informed of the elements of the project that impact them so they can make unrushed, informed decisions.

If you would like to keep up to date with the latest information, please complete our contact form.

So what are the alternatives?

In order to turn off analogue services, new technologies are being phased in. At the point of Stop sell exchanges will typically provide full fibre coverage enabling a new product portfolio which includes:


Fibre to the Premises (FTTP) broadband provides the fastest possible speeds available for a broadband product.


SOGEA connectivity using the existing copper line but with no analogue telephony capability.

IP telephony

this has of course been available for years but will need to 100% replace the PSTN and ISDN Public telephony networks.

Hosted PBX

Future proof upgrade and development path – Hosted PBX feature set will continue to grow as your business does.

Fixed Telephone System

Utilising a telephone system for over calls over the internet with new technology features. Replacing traditional systems with ISDN

What we do