Quite the interesting read, this article titled “This is how the landline
phone will die”
https://www.wired.co.uk/article/landline-phone-network-deathExcerpts from this below
Engineers are racing to kill the UK’s landline network by 2025. But untangling the mess of copper lines is a risky business.
Thousands of Openreach engineers are working to replace Britain’s copper telephone network and kill the landline for good. Their deadline? December 31, 2025.