| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the need for a caller to remember his own telephone number and to improve the convenience of telephoning operation by performing voicing control of the own telephone number information of the caller and notifying the other party with a voice signal. SOLUTION: An own telephone number information calling switch 14a, an LCD, a microphone 15a are installed on a portable telephone 10a. Memory 11a stores in advance the own telephone number information that has been made into numerical data. Here, when the own telephone number information is notified to the opposite party telephone set, a user first depresses the switch 14a. Then, the own telephone number information is shown on the LCD. Later, after the own telephone number information is turned into voice by an LSI 12c, it becomes a radio signal and is outputted through an antenna 13b. The radio signal is received by a relay center and is converted into an electrical signal. The electrical signal is received by the opposite party telephone set via the relay center and a PBX in a building and an own telephone number is notified by voice.
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