发明名称 |
Digital key telephone system |
摘要 |
A key telephone system wherein the line can be held corresponding to a line selection key. A first display selectively displays information associated with a held office line or extension line on an extension terminal and a second display synchronised with the first display displays information representing the line selection key corresponding to the held office line or extension line. |
申请公布号 |
GB2352120(A) |
申请公布日期 |
2001.01.17 |
申请号 |
GB20000024922 |
申请日期 |
1997.02.13 |
申请人 |
* KABUSHIKI KAISHA TOSHIBA |
发明人 |
TOSHIAKI * TANAKA;HIROSHI * MANO;SETSUO * KIMURA;YOSHIHITO * NAGANO;MASAYUKI * TSURUSAKI;TAKASHI * WATANABE;TERUNORI * SUWA;ISAKU * KOMURO;NOBUHIRO * MASAKI;YOSHIHIRO * KAWAUCHI |
分类号 |
H04M1/57;H04M3/22;H04M3/26;H04M3/42;H04M3/428;H04M3/533;H04M3/58;H04M9/00;H04Q1/10;H04Q3/545;H04Q3/58;H04Q3/62 |
主分类号 |
H04M1/57 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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