In December 2025, BT Openreach will permanently switch off the Public Switched Telephone Network (PSTN). This means traditional analogue phone lines and ISDN services will no longer work. Any systems still relying on these older lines, such as fax machines, alarms, or landline phones, will need to be upgraded to digital alternatives before the deadline.

Businesses that move to VoIP early will avoid disruption and benefit from lower costs, greater reliability, and advanced features like call recording and mobile apps. Edmondson’s can handle the full migration process, ensuring your numbers, call flow, and extensions remain the same.