The big switch off.

You're probably already aware of the PSTN, ISDN switch off since the BT Group announced it in November 2015. But what is it and how does it affect you?

Our Partner Portal gives you the resources you need to inform and educate your customers, so they can clearly understand what they need to do and how to do it. You'll find supporting material including guides, timelines, and product options to support you through the transition.