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    • 9. 发明申请
    • Prepaid calling card system
    • 预付电话卡系统
    • US20020101969A1
    • 2002-08-01
    • US09769340
    • 2001-01-26
    • Ruth-Ellen Beebe
    • H04M015/00H04M017/00
    • H04M15/08H04M15/00H04M15/12H04M17/00H04M2215/62
    • The present invention is a pre-paid calling card system for companies that utilize 900 lines. The cards are graphically designed to imbibe the nature of the particular 900 number. The cards are targeted for specific 900 numbers and are easily be marketed along side products that are similar to the 900 line. The cards provide a method for a caller to know exactly the amount spent on calls in advance as they are pre-paid. The present invention allows callers to dial 900 numbers from any location with a phone without worries of surcharges or reverse billing. The callers are assured anonymity in their calls due to the nature of pre-paid calling cards.
    • 本发明是一种使用900线的公司的预付费电话卡系统。 这些卡是图形设计的,以吸收特定的900号码的性质。 这些卡片针对特定的900个数字,并且易于沿着类似于900线的侧面产品上市。 这些卡提供了一种呼叫方预先准确地知道在呼叫上花费的金额的方法。 本发明允许呼叫者使用电话从任何位置拨打900号码,而不用担心附加费或反向计费。 由于预付费电话卡的性质,来电者在电话中的匿名保密。