Ge Instajack

there is not much in the way of packaging information, but you plug a unit into an electrical outlet and connect a cord from the tone of this device, then connect the other device on a electrical outlet and connect a line cord of this unit to your phone ...

I would not recommend using one of these ...

IDC data are not transferred to the remote unit ...

can send data over the connection - no fax, no DSL signal, no dial-up modems ...

I did not find a manual for these units, so do not know if it uses RF - and if so how often, if it uses RF, there is a possibility that it could be listened in the scanner with a radio. .. if it uses the power grid, then both cards must be connected to electrical outlets that are on the same stage of the power of your electric meter ... because the information I could find indicates that it will work between floors, and do not pass CID info, I guess it is using power lines to connect the devices ...