| 摘要 |
The present invention relates to a technique regarding a method to allow authorized users to freely set a ringtone therebetween. According to the present invention, one or several users, among users who have installed a ringtone program, may be designated and one or a plurality of ringtones may be set to execute at different execution times. In this manner, since the ringtone program users may set a ringtone in real time therebetween, they may have fun and get pleasure, and in case of emergency, a function of informing a callee about a state of a caller by changing a ringtone can be provided. |
