Method of and apparatus for hiding numbers inputted by a user from being displayed on the LCD screen of a digital telephone

摘要

A method of displaying the numbers inputted by a user on a liquid crystal display (LCD) screen provided in a telephone connected through an extension with a telephone switching system, comprises the steps of setting the telephone to the hide key mode to hide the numbers in response to the input of a hide key, and hiding the numbers by replacing the numbers with obscuring symbols displayed on the liquid crystal display (LCD) screen.