Call Button: A button is placed in different areas (such as rooms, offices, or floors) for users to press when they need assistance.
Indicator/Receiver: When the call button is pressed, an indicator or receiver (usually in the peons office or at a central station) alerts the staff to respond to the request. This could be an audio beep, visual light signal, or both.
Control Panel: In some advanced systems, a control panel may be used to manage multiple call buttons, showing which rooms or locations have made a request.
Wiring/Connectivity: In wired systems, the call buttons are connected via electrical wiring to the receivers. In wireless systems, they function over radio signals or Wi-Fi.