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US06625439B2 System and method for managing prepaid wireless service 有权
用于管理预付费无线服务的系统和方法

System and method for managing prepaid wireless service
摘要:
A method facilitates provisioning of pre paid wireless services. Credit refresh operations involving a pre paid wireless communication device involve SMS messages transmitted to the device over the air. The device uses tariff tables to keep track of a call's impact on available credit. The tariff tables are updatable at the service provider's discretion using SMS messages.
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