Controller Unit for the DoorBell Fon door answering device. The DoorBell Fon control unit requires connection to only one incoming line and one door station. A second door station may be added to the controller to operate another entryway.

The DoorBell Fon is the 21st Century doorbell. This amazing product will bring convenience, security, & assistance to your life. It is simple to install and even easier to operate. DoorBell Fon will work with your standard home telephone, single or two line, PBX or key system.

Some of the features of this amazing product:

• Installs using single pair of wires
• Operates two separate entryways
• Distinctive ring for each entryway
• Built in call waiting