The technology that currently powers landline telephones is to be switched off in 2025 – but don’t panic, you will still be able to have a handset in the hallway should you wish. The Public Switched Telephone Network (PSTN) is a modern version of 19th Century technology – it is what brings the connection into your home via a copper cable – but its days are numbered, according to Openreach, which has already begun work on an Internet revamp for the humble landline.

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