Which device connects a caller directly to a telecommunicator?

Which device connects a caller directly to a telecommunicator?

• A. Local alarm
• B. Fire alarm box
• C. Central alarm station
• D. Call box

Answer: (D)

The key idea here is understanding what each device is designed to do in the communications chain. A call box is built so that when someone uses it, they get a direct line to the telecommunicator at the dispatch center. There’s no intermediate step or local alert to occupants—the purpose is to connect the caller straight to the person who will take the call and dispatch units. Local alarms are meant to warn people on the scene and trigger local alerts, not to place a direct call to the dispatcher. A fire alarm box does link to the central alarm system, ultimately reaching the dispatch center, but the device itself isn’t necessarily a direct, immediate connection from a caller to the telecommunicator. The central alarm station is the facility where the telecommunicator sits, not a field device that connects a caller. So the device designed to connect a caller directly to a telecommunicator is the call box.

The key idea here is understanding what each device is designed to do in the communications chain. A call box is built so that when someone uses it, they get a direct line to the telecommunicator at the dispatch center. There’s no intermediate step or local alert to occupants—the purpose is to connect the caller straight to the person who will take the call and dispatch units.

Local alarms are meant to warn people on the scene and trigger local alerts, not to place a direct call to the dispatcher. A fire alarm box does link to the central alarm system, ultimately reaching the dispatch center, but the device itself isn’t necessarily a direct, immediate connection from a caller to the telecommunicator. The central alarm station is the facility where the telecommunicator sits, not a field device that connects a caller. So the device designed to connect a caller directly to a telecommunicator is the call box.