发明名称 |
Time, date and originating number display provided to calling party |
摘要 |
For analog telephone service subscribers, an apparatus and a method is provided for displaying a caller's originating number and/or the current time of day on the subscriber's incoming call line identification equipment. The subscriber's originating telephone number is obtained from a database within the telephone switching system providing POTS service to the subscriber. The time of day is obtained from a real-time clock within or in communication with the telephone switching system. Data is preferably transmitted to the subscriber's equipment by analog frequency shift keyed protocol.
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申请公布号 |
US7215749(B1) |
申请公布日期 |
2007.05.08 |
申请号 |
US20000572527 |
申请日期 |
2000.05.17 |
申请人 |
GATEWAY INC. |
发明人 |
LIEBENOW FRANK |
分类号 |
H04M1/56;H04M3/42;H04M1/2745;H04M1/57;H04M11/00;H04M15/00;H04M15/06;H04Q3/66 |
主分类号 |
H04M1/56 |
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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