Abstract: A portable terminal device of a calling party individually sets a sounding pattern to be used for reporting an incoming call, and a called party is informed of the thus-set sounding pattern beforehand. As a result, when the terminal device of the called party makes the thus-set sounding pattern, the terminal device enables the user to immediately specify the calling party. In addition to sound, blinks of light, vibration of a vibrator, or the color of backlight can be used solely or in combination two of more. Further, so long as the portable terminal device is provided with display means capable of displaying characters, in addition to the incoming call reporting means, a simple message can be indicated on the portable terminal device. Consequently, the called party can immediately ascertain the nature of the call without directly talking with the calling party through the portable terminal device.