发明名称 INDIVIDUAL TELEPHONE NUMBER SYSTEM
摘要 PURPOSE:To provide same service as the telephone set used independently for the one used commonly by assigning individual telephone numbers to those who use one telephone set commonly and entering the user identification code when some one uses the telephone set. CONSTITUTION:Suppose Mr. A wants to make a call using the telephone set 10. The telephone set 10 and an originating register 23 are connected through a switch network 22, then the telephone set becomes busy state. Mr. A dials the telephone number '209' of the called party and his user identification code from the telephone set 10. Suppose that the user identification code is his telephone number i.e. '200 (his telephone number)', fro example, Mr. A shall dial '209200'. When a central control device 21 receives the user identification code, it converts the number to the telephone number and causes the idle-busy state display data corresponding to the telephone number to be busy state. Finally, the channel from the telephone set 10 to the switch network 22 to an intra-office trunk 24 to the switch network 22 to the telephone set 15 is formed.
申请公布号 JPS61125268(A) 申请公布日期 1986.06.12
申请号 JP19840246621 申请日期 1984.11.21
申请人 NEC CORP 发明人 MIZUNO FUKUZO
分类号 H04M3/42;(IPC1-7):H04M3/42 主分类号 H04M3/42
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