发明名称 |
Method of telephone call wherein status data inhibits calls and indicates to the caller the reason the called subscriber is unavailable |
摘要 |
A method of telephone call, in which if a subscriber is unable to answer an expected call to this telephone due to a conference, business trip, vacation or temporary absence, the reason of not answering is registered with an electronic switching unit from the subscriber's telephone. When an incoming call arrives for the subscriber's telephone, the electronic switching unit decides whether the subscriber's telephone is advisable to call it on the basis of the registered subscriber status data. If the reason for no answer is registered, the calling subscriber is informed without calling the other subscriber by an audible signal or a recorded message.
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申请公布号 |
US4969182(A) |
申请公布日期 |
1990.11.06 |
申请号 |
US19890381190 |
申请日期 |
1989.07.18 |
申请人 |
HITACHI, LTD. |
发明人 |
OHTSUBO, TOKO;INOKUMA, YOSHIKATSU;KUMON, MASAHIRO;USUI, AKIHIRO |
分类号 |
H04M3/42;H04M3/436;H04M3/53;H04M3/533 |
主分类号 |
H04M3/42 |
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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