相手先情報表示システム

Called party information display system

Abstract

PROBLEM TO BE SOLVED: To obtain called party information of an opposite station without the need for a memory of a large capacity and for a speech for the purpose by storing the destination information representing a busy state of the user of a telephone set contained in its own station and informing and displaying the information to a caller station via a control line in response to an inquiry from the caller station. SOLUTION: An inquiry special number + a caller number dialed by the caller by using a multi-function telephone set 30 is sent to an automatic exchange 20 via a port microprocessor 23. The information received by the exchange 20 is analyzed by a central processing unit 21. The inquiry special number + a caller number stored is sent to a path corresponding to the caller number stored in a storage device 22 in response to the analysis result by using a setup signal on a Dp channel common line 40. A CPU 21 in a called station analyzes incoming number information and when the information is inquiry specific number, the information corresponding to the caller number is returned while being superimposed on display information of a release end signal. The caller station displays the returned information onto a display section (LCD) 25 of the multi-function telephone set 30. COPYRIGHT: (C)1997,JPO
(57)【要約】 【課題】 大容量のメモリを必要とせず、かつ通話を行 わずに他局の相手先情報を得る。 【解決手段】 自局に収容されている電話機の使用者の 話中状態等を示す情報を記憶装置22に記憶しておく。 この記憶しておいた情報を、発信局からの問合わせに応 答し通話に用いない制御線40を介してその発信局に送 信する。この送信された情報を発信局において表示部に 表示する。 【効果】 通話を実際に行わなくても、他局の相手先情 報を得ることができる。また、自局に収容されている各 端末の情報を各局でそれぞれ管理し他局に通知するた め、1つの局で保持すべきデータ量が比較的少なくて済 み、メモリ容量が大きくならない。

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