To specify message transmitting side without looking at the display screen of a telephone having received a message when it has received a massage, without having to take the trouble of making the telephone number registered in a portable telephone and the message arrival sound to correspond to each other.
Portable telephones 1A and 1B store DL melody data which are downloaded from a melody control center 3. The portable telephones 1A and 1B, when transmitting call signals, add stored DL melody data to call signal and transmit call signals fitted with DL melody data. The portable telephones 1A and 1B, when they have received the call signals fitted with DL melody data, playback the DL melody that the DL melody data affixed to the call signals represent.
| JPS57210738 | CALLOUT CONNECTING SYSTEM FOR MISSING PERSON |
| JP4558765 | Communication system and its method |
ENDO HIDENORI
TSUZUKI YURIKO
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