我国各电话机生产厂在设计电话机时,往往忽视电话软线的互换性,形成了一家话机厂用一种甚至多种编号电话软线的状况.目前,国内电话线的编号已多达六十多种,并有继续增加的趋势.而各种编号电话线的不同之处,仅是电话机与电话线的联接方法与位置有差异.纵观美国、日本、西欧等发达国家的电话机发展情况,虽然他们非常注意外观上的标新立异,然而只要用极少几种电话软线,即可满足配套使用要求.这主要是他们注意解决了电话机与线的接插件的标准化问题. When designing telephones, telephone manufacturers in China often ignore the interchangeability of telephone cords and form a phone factory with one or even more numbered telephone cords. At present, the number of domestic telephone lines has reached as many as There are more than sixty kinds, and there is a trend of increasing. The differences between various numbered telephone lines are only the differences in the connection method and location of telephones and telephone lines. Throughout the United States, Japan, Western Europe and other developed countries The development of the aircraft, although they pay great attention to the appearance of the new, but as long as the use of a few telephone cords, to meet the supporting requirements. This is mainly their attention to solve the standardization of telephone and cable connectors.