This device prevents the phones form ringing on incoming calls. The calling party just hears the phone ringing and ringing, but it's never answered since the phones are silent on the target's end so they have no idea that someone is calling them. Answering machines, Fax machines, and even voice messaging - none of these will pick up either. Yet outgoing calls dialed are completely unaffected and go through normally! The target has no idea there's anything wrong, they'll just begin to think that they've become very unpopular as nobody calls them anymore, or even leaves them messages. If installation of this device happens to be on a business line, the potential consequences are even greater. Installs anywhere along the telephone line; it comes with both a modular plug connector (to fit in standard telephone jacks) and spade-lugs connector for installations in un conventional, difficult-to-find locations. WARNING: This device is to be used only in a legal and lawful manner in compliance with all applicable laws and F.C.C. regulations, which should be consulted prior to connection of any equipment to telephone lines. Size: 2½" x 1" x ¾
DR Dead Ringer - Price: $100.00