The Public Switched Telephone Network (PSTN), the traditional analogue technology that has connected homes and businesses for decades, is nearing its end.

BT Group announced the planned shutdown of PSTN, with the UK switch-off scheduled for 2027 and global shutdowns currently underway. As an IT decision-maker, understanding the impact on your organisation's infrastructure and services is crucial.

In this whitepaper, we provide guidance on how to navigate the PSTN shutdown and make the most of the opportunities presented by the transition to digital phone services, also known as All-IP.

We also explore:

• the differences between PSTN and All-IP
• the things you should take into consideration when replacing legacy services for simple voice, complex/corporate voice, and special services
•  a five-step plan for switching from PSTN to All-IP.