[1][2][3] British Telecom, the country's dominant telco, announced its intention to switch off its PSTN infrastructure by December 2025, including both copper baseband landline telephone connections and its ISDN network.
[2] Openreach, the major telecommunications infrastructure provider in the United Kingdom, is also due to retire its Wholesale Line Rental service.
[5] All providers are expected to implement Voice over IP and other IP-based network services to replace copper PSTN and ISDN connections.
including other Broadband Stakeholder Group companies such as Virgin Media and Sky UK that have their own infrastructure, will also cease to support both copper PSTN and fibre ISDN connections.
Fibre to the premises Internet access is planned to be rolled out nationally, allowing the eventual retirement of the entire copper telephone network.