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BT announce intention to switch off its PSTN & ISDN network
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UK's PSTN Switch off in 2025: All of Your Questions Answered
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The great telephone switch-off | IT PRO
UK's PSTN Switch off in 2025: All of Your Questions Answered
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Your 3 Minute Guide to the BT Switch Off - TFM Networks
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The BT Openreach PSTN and ISDN 2025 Switch Off - Digital Wholesale Solutions
Why the UK PSTN switch off matters to EVERYONE
