A handset intercom is like it sounds in that it uses phone-like handsets to make calls between each other. The Two-Way Ringdown Circuit device below can be used to connect standard analog phones together to create a self-contained intercom system where other phones ring when one is picked up. The Hot Line Analog Intercom units can be programmed with a phone number that they call when the button is pressed. We also have a simple handset-to-handset intercom that can be powered by batteries, or an optional power supply. These are excellent in areas that don't have power and need quick communication between two points over simple 2-conductor wire.