发明名称 COMMUNICATION SYSTEM HAVING MULTI-MODE LINE SELECTION BUTTONS
摘要 <p>- 14 COMMUNICATION SYSTEM HAVING MULTI-MODE LINE SELECTION BUTTONS A communication system includes station sets having one or more function enable buttons and a plurality of line access buttons. The function enable buttons include the extension, transfer and send message buttons. Each line select button is associated with a communication line and with the station set associated with that line. Operation of a function enable button initiates the feature associated with that button and also changes the function of a line select button from a line access button to an auto-dial select button for dialing the station associated with the line select button.</p>
申请公布号 CA1250646(A) 申请公布日期 1989.02.28
申请号 CA19860509077 申请日期 1986.05.14
申请人 AMERICAN TELEPHONE AND TELEGRAPH COMPANY 发明人 GALENSKY, DUANE;GIULIANI, ANDRIAN A.
分类号 H04M9/00;(IPC1-7):H04M3/42 主分类号 H04M9/00
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