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上海市从1952年试办公用电话传呼服务,到1985年5月底,全市已装有公用电话7368部,平均每天使用五十余万人次,在上海市话网总通话量中约占20～25%,成为全市范围内沟通信息和相互联系的一种必不可少的通信工具。但是,从企业经济效益分析,则不但收益很差,而且还存在着已开始影响通信服务的潜在“危机”。主要表现在:电话设备增加越多,通话量越高,市话企业的负担越重,而相对的经济损失也就越大。如以1981年到1986年为例,六年内共收入通话费2300万元,而其中用以支付的服务酬金共1056万元,市话企业仅收入1244万元(尚未扣除维护费用与业务性支出),只占总通话费收入的54%。如按公话每月平均通话
From 1952, Shanghai piloted a public telephone paging service. By the end of May 1985, there were 7,368 public telephone lines in the city, with an average of over 500,000 daily trips and 20-25% of the total telephone traffic in Shanghai. , Become the citywide communication of information and interrelated an essential communication tool. However, from the perspective of the economic efficiency of enterprises, not only the benefits are poor, but there are also potential “crises” that have begun to affect communications services. Mainly manifested in: the more telephone equipment increases, the higher the number of calls, the more stress the local business, and the greater the relative economic losses. For example, from 1981 to 1986, for example, a total of 23 million yuan of call charges were received within six years, of which 10.56 million yuan was paid for services and only 10.44 million yuan was received from local telephone companies (without deduction of maintenance costs and business expenses) , Only 54% of the total telephone fee income. If the public telephone the average monthly call