ISDN Switch Off | The 2025 ISDN Switch Off – [Guide]

ISDN switch off

A free guide outlining the whats, the whens and the hows of the ISDN and PSTN switch off.

Openreach will be switching off its PSTN and ISDN networks in 2025 in favour of IP voice services.

Now, we know what you’re thinking, “that’s ages away”, right?


Over the last five years, ISDN channels have declined in use by 30% and  25% of UK businesses are unaware of any switch off so as a result, the REAL date businesses need to start adding to the calendars is Sept 2023 – which is when Openreach will cease taking any new orders for ISDN or PSTN services and will no longer install or add lines to businesses with existing services in place.

Click the image to download our free guide and find out what the switch off means for your business, what your options are and how Daisy can help you make the switch.

ISDN Switch off Guide

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