The history of call bells in South Korea can be traced back to the beginning of the 1990s. Daily newspaper Kyunghyang Shinmun introduced the call bell in its “New Technology, New Product” column on May 14, 1990. As described by Kyunghyang, it was a wireless device developed by a company
Upon entering any restaurant in South Korea, after saying hello, the staff inevitably ask the same question: How many in your party? Not at this restaurant. The staff here assume you’re all alone. When I walked into Dokgojin, a barbecue eatery in Bucheon, a suburb west of Seoul, the