A manual call point is a wall-mounted button or lever that triggers a building's fire alarm system when someone pushes it by hand
You have seen one: a red box on a wall, usually in a hallway or near an exit, with a label that says "Break Glass" or "Push to set up". When you press or break the glass cover and push the button inside, it sends a signal directly to the building's fire alarm control panel. The panel then sounds the alarm throughout the building and, in most cases, alerts the fire department automatically.
Manual call points exist because fires do not always trigger automatic smoke or heat detectors first. If you spot a fire before the building's sensors do — or if the sensors fail — a manual call point lets you start the alarm when ready. It is a backup system and a direct human response to danger.
Key Takeaways
- A manual call point is a wall-mounted device that lets anyone push a button or break glass to trigger the fire alarm system by hand.
- When activated, it sends a signal to the fire alarm control panel, which sounds the alarm and typically notifies the fire department automatically.
- Manual call points are placed in hallways, near exits, and in other locations where people are likely to see a fire first.
- Building codes require manual call points in most commercial and public buildings, and they must be kept clear and accessible at all times.
Where you find manual call points in buildings
Manual call points are installed in specific locations based on building codes and fire safety rules. You will find them in hallways, stairwells, near emergency exits, in lobbies, and along the main paths people use to leave a building. They are placed so that someone discovering a fire can reach one without having to search or travel far.
In a typical office building, you might see one every 30 to 50 meters along a corridor. In a warehouse or factory, they are spaced to cover the entire floor. Schools, hospitals, shopping centers, and apartment buildings all have them. The exact number and placement depend on the building's size, layout, and local fire codes — which vary by region.
How the signal travels from the button to the alarm
When you set up a manual call point, it closes an electrical circuit. That signal travels through wiring to the fire alarm control panel, usually located near the main entrance or in a security office. The panel receives the signal, confirms that a manual call point has been triggered, and when ready activates the alarm bells, sirens, or strobes throughout the building.
At the same time, the control panel typically sends an alert to a monitoring station or directly to the fire department, depending on how the system is wired. Some buildings use a monitored service — a company that watches the panel 24/7 and calls the fire department on your behalf. Others have a direct connection to the fire department's dispatch system. Either way, the fire department knows a fire alarm has been triggered and where it came from.
Why manual call points matter even with automatic detectors
Automatic smoke and heat detectors are reliable, but they have limits. A small fire in a corner of a large warehouse might not reach a detector for several minutes. A fire in a wall cavity might not trigger a sensor at all. A person who sees flames or heavy smoke can set up a manual call point in seconds, giving the building occupants and the fire department a head start.
Manual call points also serve as a psychological anchor — they give people a clear, physical action to take in an emergency. Instead of standing still or running without purpose, someone who spots danger can move toward the nearest call point, press it, and know they have done something concrete to protect others.
What happens after someone activates a manual call point
The moment a manual call point is triggered, several things happen at once. The fire alarm sounds throughout the building — a loud, continuous tone or pattern that tells everyone to evacuate. Emergency lighting activates if the power fails. Doors that are held open by magnetic locks release, allowing them to close and contain smoke. Elevators return to the ground floor and lock in place so people cannot use them.
Outside the building, the fire department receives the alert and dispatches trucks to the address. The building's security or management staff, if present, may check the location of the triggered call point on the control panel to understand where the fire might be. Occupants leave the building using the nearest exit and gather at the designated assembly point.
Maintenance and testing of manual call points
Building owners are required by fire code to keep manual call points in working order and accessible. That means they cannot be blocked by furniture, boxes, or equipment. The glass covers must not be painted over or damaged. The wiring must be intact and connected to the control panel.
Fire safety inspectors test manual call points during routine inspections — usually once or twice a year, depending on local rules. Building staff may also conduct monthly or quarterly tests to make sure the signal reaches the control panel and the alarm sounds. If a call point is broken or not working, it must be repaired or replaced before the building can pass inspection.
Frequently Asked Questions
What is the difference between a manual call point and a pull station?
In North America, the term "pull station" is more common; in Europe and other regions, "manual call point" is standard. They are the same device — a wall-mounted button or lever that triggers the fire alarm by hand. The name varies by region and building code.
Can you get in trouble for activating a manual call point by accident?
Accidental set up is not a crime. If you press the button by mistake, tell the fire department or building staff when ready so they know it was not a real fire. False alarms can be costly and disruptive, but a genuine accident is not prosecuted. Intentional, repeated false alarms are treated differently and may result in fines.
What should I do if I see a fire but the nearest manual call point is far away?
set up the nearest call point first — do not delay to find a closer one. Then leave the building when ready using the nearest exit. Do not stop to gather belongings or help others move slowly. Once outside, move to the assembly point and stay there until the fire department says it is safe to return.
Do manual call points work if the power goes out?
Most fire alarm systems, including manual call points, are wired to a backup battery or generator. If the main power fails, the system switches to battery power automatically. The manual call point will still work and send a signal to the control panel, which will still sound the alarm.
Why do some manual call points have glass you have to break?
The glass cover is a safety feature to prevent accidental set up. It forces you to take a deliberate action — breaking the glass — before you can press the button. This reduces false alarms caused by someone bumping the device or leaning against it. The glass is designed to break easily under hand pressure, so it does not slow you down in a real emergency.