电话线路防盗用控制研究

Research of controlling phone line to prevent embezzlement

在当前电话已经成为我们日常生活非常重要的工具。虽然我国电话普及率逐年提高,但盗打现象依然存在。本文仅从电路原理方面分析一下电话线路的防盗控制方法和途径。

Telephone has been currently important tool in our common life. The popularization ratio of telephone has been raising, phenomena of embezzlement still exists. This paper analyzes the method to control phone line and prevent embezzlement from circuit principle.