JPH0163246U

JPH0163246U -

Info

Publication number: JPH0163246U
Application number: JP1987158048U
Authority: JP
Priority date: 1987-10-14
Filing date: 1987-10-14
Publication date: 1989-04-24

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例のブロツク図、第２
図は第１図の実施例の斜視図、第３図は従来の電
話機の一例のブロツク図、第４図は第３図の電話
機の斜視図である。１，１１……電話番号記憶回路、２，１２……
リダイヤル指示回路、３，１３……リダイヤル回
路、４……通話中判定回路、５……通話可能通知
ブザー、６……フツク回路、７，１７……ダイヤ
ルボタン、８，１８……リダイヤル指示ボタン、
９，１９……フツクボタン。 Fig. 1 is a block diagram of an embodiment of the present invention;
The drawings are a perspective view of the embodiment shown in FIG. 1, FIG. 3 is a block diagram of an example of a conventional telephone, and FIG. 4 is a perspective view of the telephone shown in FIG. 1, 11...Telephone number storage circuit, 2, 12...
Redial instruction circuit, 3, 13... Redial circuit, 4... Talking determination circuit, 5... Call availability notification buzzer, 6... Hook circuit, 7, 17... Dial button, 8, 18... Redial instruction button ,
9, 19... Hook button.

Claims

[Scope of utility model registration request]

a telephone number storage circuit that stores a telephone number input by a dial button; a redial instruction circuit that outputs a redial instruction signal when the other party of the telephone number is busy; a redial circuit that reads the telephone number from a telephone number storage circuit, outputs a dial tone, and outputs a busy determination instruction signal; and upon receiving the busy determination instruction signal, detects a busy tone to determine whether the other party is busy. a call-in-call determination circuit that repeatedly operates the redial circuit if the call is in progress, and outputs a call-available notification signal if the call is available; A telephone characterized by having a call availability notification buzzer to notify that a call is available.