At the end of 2025, Openreach, the infrastructure division of BT, will be switching off its copper network. This means that the UK’s analogue network – the Public Switched Telephone Network (PSTN) and Integrated Service Digital Network (ISDN) will no longer be available. Dan Whittington, Head of Utilities at Whitecode, looks how the UK’s digital upgrade will impact businesses and if they are ready for the ‘switch’.