发明名称 |
Billing method for customers having IP telephony service with multiple levels of security |
摘要 |
A method for initiating a security and billing feature request at the beginning or during an active telephone call. The telephone subscriber can select one of a plurality of security levels that may be required to ensure privacy during a call. Since each level of security is based on a different encryption and authentication algorithm, the levels of security can be incrementally priced. Thus, selecting an algorithm which is deemed to be very secure can be billed to the subscriber at a higher rate than an algorithm that is deemed to be less secure.
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申请公布号 |
US6363150(B1) |
申请公布日期 |
2002.03.26 |
申请号 |
US19990475286 |
申请日期 |
1999.12.30 |
申请人 |
AT&T CORPORATION |
发明人 |
BHAGAVATH VIJAY K;WALKER HOPETON S |
分类号 |
H04K1/00;H04M1/253;(IPC1-7):H04K1/00;H04M1/24 |
主分类号 |
H04K1/00 |
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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