A call bell (sometimes called a counter bell, service bell, or concierge bell) is a bell that alerts and causes attention to the attendant who hears it.
A call bell is used in hotels or other such facilities where people need to call attention to the person in charge to check them in, take their bags, of for any other reasons.
It is mostly used in restaurants and usually attached to every table in restaurants. If a customer presses the button on the call bell, there is a sound and the table number is shown on the display, so the employees can come to the tables to connect with customers.
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