发明名称 |
Security cellular telecommunications system |
摘要 |
A cellular telecommunications system having a security feature which allows only pre-authorized users to complete cellular telephone calls. The system and method recognizes a cellular radiotelephone's pre-programmed a pre-selected telephone number and a automated number identification code (ANI). The pre-selected telephone number is reserved to the pre-paid cellular telecommunications system. The cellular radiotelephone transmits the ANI and a dialed number identification system code (DNIS) to a cellular switch, which contacts a host computer for call validation by the pre-paid service provider.
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申请公布号 |
US6157823(A) |
申请公布日期 |
2000.12.05 |
申请号 |
US19980009199 |
申请日期 |
1998.01.20 |
申请人 |
FREEDOM WIRELESS, INC. |
发明人 |
FOUGNIES, DOUGLAS V.;HARNED, DAN B. |
分类号 |
H04M17/00;H04W4/24;H04W12/06;H04W88/02;(IPC1-7):H04M11/00 |
主分类号 |
H04M17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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