We wouldn’t recommend these where safety or security are an issue and they are not certified for use like this – say the fire alarm, the burglar alarm or the lift alarm. Whilst BT/Openreach are planning to turn off PSTN phone lines by 2025, there are much better solutions to work with, like 4G for these critical systems. For instance, on a lift, the alarm system will have a battery backup – but if it’s connected to your internet connection that doesn’t, and you have a power cut it won’t work.
Cisco ATA 112
The Cisco ATA, or Analogue Terminal Adapter is fantastic in situations where you need to keep that old analogue device; like a fax machine or a legacy modem system. We’ve used them, when for instance, the organisation has one of those floor standing copier/scanner/fax beasts and wants to carry on using the fax on it. The ATA simply connects to the internet on one side and provides a socket for your bog-standard phone on the other, and then your analogue device becomes part of your Hosted Voice system. In simple terms, you get a physical phone socket that your old device can plug in to and carry on regardless. Great stuff!