| 摘要 |
A portable telephone is provided with a transmission and reception unit 9, a control unit 10, a speaker 6, a display unit 5, a code reader unit 11, an operation input section 4, a microphone 3, and a storage unit 12. The storage unit 12 is provided with a telephone number memory 13, a password-data memory 14, and a personal-attribute memory 15. A buyer scans a code, in which product information is encoded, using the code reader unit 11, and enters password data via the operation input section 4. The control unit 10 performs a comparison of the entered password data and password data previously stored in the password-data memory 14. After the comparison, the transmission and reception unit 9 transmits via an antenna the product information, the telephone number stored in the telephone number memory 13, and personal-attribute data stored in the personal-attribute memory 15 to a mobile telephone company. The transmitted information is used in settlement of the sales amount. <IMAGE>
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