BT Wall Module - PSTN/PABX??
I'm looking at changing a BT socket on a wall to a modular style one (to fit next to an RJ45 in the same plate) and have found some on ebay, however they look identical but one is listed as PSTN and the other PABX. The only info I can find is that one is public one is private, but no idea how that helps us!
This socket currently is a very old-style, typical BT socket you'd find installed in your house about 15 years ago, so nothing fancy. It has a digital phone connected to it on our own internal phone network (not IP or anything like that)! I don't want to get the wrong type of module!
Maybe someone could advise which one we need?