The phone is an electronic device in the fire alarm system, which automatically calls the numbers stored in the fire when it comes to fire and, after making calls, plays a preset message.

The callers usually have the ability to store Up to 8 numbers. The surface-sensitive operation, the ability to delay the call, the ability to make a test call, and more.

This feature is part of the fire alarm system. The inputs have an input control circuit for protection against electric fluctuations.