发明名称 FIRST IDLE LINE PICKUP SERVICE
摘要 A key telephone system arrangement is disclosed which comprises a plurality of station modules and line modules both of which respond to program instructions for controlling the interconnection of lines to key stations. The arrangement includes equipment directed by the program for automatically selecting an idle line in a prescribed manner from the lines terminated at a station and for connecting the selected line to the set without the necessity for depressing a line pickup key.
申请公布号 US3701855(A) 申请公布日期 1972.10.31
申请号 USD3701855 申请日期 1971.01.18
申请人 BELL TELEPHONE LAB. INC. 发明人 HOWARD LLOYD REYNOLDS
分类号 H04M9/00;H04Q3/545;(IPC1-7):H04Q3/60 主分类号 H04M9/00
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