发明名称 |
BRANCHED TELEPHONE SYSTEM |
摘要 |
A branched telephone system having a plurality of telephones which are connected to a single subscriber line or to single radio apparatus has a function of establishing a priority set condition in which the communicating function of particular one of the telephones is validated to prevent the other telephones from being used, and a function of automatically cancelling such a priority set condition. |
申请公布号 |
CA1283231(C) |
申请公布日期 |
1991.04.16 |
申请号 |
CA19880560555 |
申请日期 |
1988.03.04 |
申请人 |
NEC CORPORATION |
发明人 |
FUJISAKI, HISASHI;SHIMADA, KEIKO |
分类号 |
H04M1/72;H04M1/56;H04M1/723;H04M1/725 |
主分类号 |
H04M1/72 |
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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