发明名称 Call message delivery system and method
摘要 A call delivery service (CDS) apparatus and method are disclosed which enable non-subscriber callers to a common carrier network to bill a voice message delivery to their billing code, and to check the delivery status of the message from the network during a subsequent call. Optionally, at the caller's request, CDS can deliver the message status to the caller at a predesignated station. In one embodiment the caller can optionally request a response from the message recipient or answering party at the called station.
申请公布号 US4972461(A) 申请公布日期 1990.11.20
申请号 US19890410559 申请日期 1989.09.20
申请人 AT&T BELL LABORATORIES 发明人 BROWN, PERCY B.;CHAU, NGA V.;HSIAO, TUNG-HAI;KARAWAS, GEORG K.;LECRONIER, RICHARD E.;PARROTT, DAWN R.;RUSSELL, JR., THOMAS L.;YING, WEN-PING
分类号 H04M3/51;H04M3/53;H04M3/533;H04M15/00;H04M17/02 主分类号 H04M3/51
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