| 摘要 |
A telephone card system comprises a telephone debit card having a continuous portion of a calendar printed on one or both sides. Additional information pertaining to a specific date or to a specific period can be provided on the card in addition to the calendar information. An automatic vending machine for the telephone card requires the customer to enter selections from two groups of choices, for example a selection from a group of telephone card values, and from a group of calendar periods. The public telephone with which the card is used is provided with a window through which the calendar information and other information can be viewed while the card is in place in the card reader associated with the telephone.
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