MOBILE PHONE AND METHOD FOR CONTROLLING VOLUME OF MOBILE PHONE

摘要

A method is used for controlling volume in a mobile phone. The method includes the following steps. The mobile phone receives an input voice signal, and the mobile phone determines if the input voice signal is a digital signal. If the input voice signal is not digital signal, the input voice signal is converted to the digital voice signal. A volume of the digital voice signal is adjusted to a predefined volume if the volume of the digital voice signal is not equal to the predefined volume. The adjusted digital voice signal is output from the mobile phone.