发明名称 Telephone monitoring system to reduce consumer payments of telephone bill
摘要 The present invention relates to an apparatus and method for a telephone management system having a CPU, rate data storage, random access memory, program storage, telephoe interface, memory bus, printer, numeric and functinal keypads, speaker and at least two display monitors.
申请公布号 US5748718(A) 申请公布日期 1998.05.05
申请号 US19950373426 申请日期 1995.01.17
申请人 MANICONE, PAUL 发明人 MANICONE, PAUL
分类号 H04M1/56;H04M1/57;H04M1/677;H04M15/30;(IPC1-7):H04M15/00;H04M15/06 主分类号 H04M1/56
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