无线寻呼(Paging)是一种非语言的单向告警个人选择呼叫系统,属于单向单工的移动通信方式。它以设备简单、投资少、传递信息及时、操作使用简便及价格便宜等特点已在全球范围内得到广泛使用,日益满足着活动中的人们对信息交流的需要。随着寻呼系统的自动化、寻呼机的成本下降、品种增多、存储量增大,寻呼通信除了可以作为公用电话网的一种延伸与补充外,其服务内容已扩大到 Paging is a non-verbal, one-way alert, personal selective calling system that is a one-way simplex mobile communication method. Its simple equipment, low investment, timely delivery of information, easy operation and low price have been widely used worldwide to meet the needs of people in the activities of information exchange. With the automation of paging systems, the cost of pagers has dropped, the variety has increased, and the storage capacity has increased. In addition to being an extension and supplement to public switched telephone networks, paging services have expanded to include