I have a Teledex Diamond phone, and I read that it will only work on a PBX phone line. Is there any way I can get it to work on a PSTN (home) line? It has a standard RJ11 phone jack. If anyone needs pictures, I’ll provide them.
Probably not. I know some of the PBX systems will allow you to plug in a standard telephone into the system and use it like a system phone (you usually end up having to dial commands first to do anything) but not the other way around.