2001年12月30日上海正式公布了上海名牌产品名单。上海贝尔有限公司生产的S12程控交换机在今年新申报被推荐的上海名牌产品中名列第一位，首次成为上海名牌产品。 S 12是我国第一代程控交换机，也是上海贝尔有限公司最早引进的高科技产品，它便于扩容、全分散控制、全微机处理 December 30, 2001 Shanghai officially announced the list of Shanghai brand names. Shanghai Bell Co., Ltd. produced S12 program-controlled switches in this year’s new declaration was the top brand-name products in Shanghai ranked first for the first time to become Shanghai brand-name products. S 12 is China’s first generation of program-controlled switches, is the earliest introduction of Shanghai Bell Co., Ltd. high-tech products, it is easy to expand, decentralized control, all-computer processing