Too often, the switch-off is viewed as a straightforward telecommunications upgrade when, in reality, it represents a significant business resilience challenge. For businesses across Northern Ireland, the PSTN switch-off is therefore about far more than modernising communications. This is where the PSTN switch-off presents an opportunity as well as a challenge. It provides an opportunity to strengthen connectivity, improve flexibility and build greater resilience into day-to-day operations. The PSTN switch-off is often described as the end of an era for traditional telephony.