PSTN Switch-Off BT Openreach announced the end of PSTN and ISDN back in 2015. The telecommunications service provider began shutting down networks in 2020 and will stop taking new orders […]
PSTN Switch-Off BT Openreach announced the end of PSTN and ISDN back in 2015. The telecommunications service provider began shutting down networks in 2020 and will stop taking new orders […]