发明名称 ROAMING AUTHORIZATION SYSTEM
摘要 A roaming restriction system permits a wireless carrier or a subscriber to s et a profile that identifies a chosen time window within which the subscriber's wireless calls that are originated from one or more selected roaming areas, are not allowed to be co mpleted, while calls that are initiated either from authorized roaming areas or outside the chosen time window are allowed to be completed. The roaming restriction system allows a wireless carrier to either suspend or grant roaming privileges for a given subscriber within one or more location areas, and for a particular time window.
申请公布号 CA2195494(A1) 申请公布日期 1997.08.06
申请号 CA19972195494 申请日期 1997.01.20
申请人 AT&T WIRELESS SERVICES, INC. 发明人 AMIN, UMESH J.;REDDEN, MICHAEL
分类号 H04W48/04;(IPC1-7):H04Q7/38 主分类号 H04W48/04
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