Welcome to TSI’s communications hub
Welcome to the TSI communications hub. It’s a blog for sharing our news, our views and some of our client case studies that might inspire you or your customers.
Please do let us know if there’s something you’d like us to discuss here.
PSTN is changing
In 2025 BT Openreach are switching-off the old analogue Public Switched Telephone Network (PSTN). The PSTN has been the backbone of the UK's...