Has it really been 4 years since BT announced the big switch off in 2025 for PSTN and ISDN?
That means we now only have 4 years to plan how businesses prepare for December 2025. The BT Switch Off… The short answer is they are old outdated systems that take too much time and money to run, the convergence of all services, voice, data, video to IP protocol means the maintenance of only one network so […]