All of my household telephone wiring converges into one box, located outside the house, which then interfaces with my telephone provider's system. I'm sure there's a technical term for this.
In any event, I've recently switched to Vonage and would like to backfeed the signal into the entire house, as we've got three wall phones in addition to our cordless system.
I understand I need to wire a phone cable into that box, which will distribute the signal to the house. I have a few concerns:
I believe there's 48V going through a phone line. AT&T's 48V + Vonages 48V = 96 electronic-frying volts. I have canceled all service with AT&T, but I want to completely disconnect AT&T's wiring from the box to eliminate any possibility of damage to my phones, then wire in a phone line coming from the VoIP adapter provided by Vonage.
Is this legal? Is the box I speak of my property, or is it AT&T's?