发明名称 Method of providing 911 service to a private branch exchange
摘要 A method of providing 911 service to a private branch exchange, includes grouping a plurality of private telephone numbers into a set. An outgoing telephone line for a 911 call is assigned to the set. A location information for the outgoing telephone line is input into a location database.
申请公布号 US2002090061(A1) 申请公布日期 2002.07.11
申请号 US20020093749 申请日期 2002.03.08
申请人 SAVAGLIO JOHN JOSEPH;FOWLER RICHARD BRUCE 发明人 SAVAGLIO JOHN JOSEPH;FOWLER RICHARD BRUCE
分类号 H04M3/42;H04M7/00;(IPC1-7):H04M11/04 主分类号 H04M3/42
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