I'm looking for a way to isolate a particular phone from others that are connected to the same line (in other rooms, for example). What this means is that noone should be able to pick up their receiver and hear what I'm saying if mine is already picked up.
I'm sure that there is a device that does this, but I don't know what it's called nor where to look for one.
Can anyone help me out?
I'm sure that there is a device that does this, but I don't know what it's called nor where to look for one.
Can anyone help me out?