Day: 15 September 2020

BT ISDN Switch Off 2025

As the impending switch-off looms ever closer we wanted to offer a gentle reminder to any customers still considering or* currently using ISDN PBX phone systems that BT confirmed that the ISDN network will be switched off by 2025 forcing customers of the UK’s roughly 3 million ISDN lines to migrate to IP services whether or not they are available, stable or suitable.