发明名称 Direct distance dialing (DDD) access to a communications services platform
摘要 Direct Distance Dialing (DDD) access is provided for a communications services platform. A caller may dial a local DDD number or a long distance DDD number to access the communications services platform. A platform may provide a plurality of different communications services, including voicemail services, paging services, automatic routing services, and facsimile messaging services. Expenses associated with servicing the call are partitioned between a caller and a subscriber of the communications services platform in an intuitive and reasonable fashion.
申请公布号 US6018575(A) 申请公布日期 2000.01.25
申请号 US19970925371 申请日期 1997.09.08
申请人 MCI WORLDCOM 发明人 GROSS, KAREN A.;PICKERAL, EDDIE L.;LEAR, THOMAS W.
分类号 H04M3/42;H04M15/00;(IPC1-7):H04M3/42 主分类号 H04M3/42
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