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Prepaid smart card in a GSM based wireless telephone network and method for operating prepaid cards
Prepaid smart card in a GSM based wireless telephone network and method for operating prepaid cards
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机译：基于GSM的无线电话网络中的预付费智能卡和用于操作预付费卡的方法
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摘要
The invention provides a prepaid smart card to be used in a wireless telephone network, and methods for prepaying for wireless telephone services, as well as systems for operating a wireless telephone network with prepaid smart cards. The cards, methods and systems permit the use of wireless telephones anonymously, and/or the payment by a user without having a subscription. The invention requires minimal changes to the existing wireless telephone and wireless telephone network, yet provides security against abuse or fraudulent use of the telephone system. Additionally, promotional material may be provided with the prepayments, and persons may prepay into a subscriber's telephone.
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