| 摘要 |
PURPOSE:To reduce the burden in the shop side, by loading magnetically the telephone number of the credit company together with the credit number in an auxiliary field on a credit card to authorize the card. CONSTITUTION:The telephone number in a place, where a host computer 6 of a credit company, is installed, and a credit number are stored on a credit card 1, and a telephone set 4 in the shop side is so constituted that these numbers are transmitted automatically without intervention of manual operations, and the host computer 6 performs automatically the collation processing on a basis of in formation transmitted from the telephose set 4 in the shop side and returns results with voice. Consequently, dialing in the shop side is no required. |
