👉 In the context of telecommunications, a "buzzer" is a device that sends signals to alert users about important information or events. These devices are typically used in public transportation systems and emergency alerts. For example, a buzzer might be used by train stations to alert passengers of upcoming delays or disruptions due to maintenance work. It is also used in emergency situations such as fires or natural disasters, where it can help to communicate the situation to people who may not have access to radios or phones.
