Openreach is in the process of preparing for the withdrawal of the Public Switched Telephone Network (PSTN). This is also known as the ‘ISDN switch-off’. The current telephone network will not be supported past the end of 2025.
By the end of 2025, all voice services will have to run on top of a broadband connection. Landlines are being used less and less, yet it remains costly to maintain the traditional copper phone network.