JPH0272046U

JPH0272046U -

Info

Publication number: JPH0272046U
Application number: JP15115888U
Authority: JP
Priority date: 1988-11-18
Filing date: 1988-11-18
Publication date: 1990-06-01
Anticipated expiration: 2003-11-18
Also published as: JPH071875Y2

Description

[Brief explanation of drawings]

第１図は本考案に係る電話機の保留音発生に関
連した電気的構成を示すブロツク図、第２図は従
来例のブロツク図である。５……スピーチネツトワーク回路、６……スピ
ーカ、７……通話録音及び／又は通話モニタ端子
、８……保留音発生回路、１０……切換スイツチ
回路、１１……切換キー、Ｐ１……第１固定接点
、Ｐ２……第２固定接点、Ｐ３……第３固定接点
、Ｐ４……第４固定接点、ｌ１……通話信号ライ
ン、Ｋ１……第１接続ライン、Ｋ２……第２接続
ライン、Ｋ３……第３接続ライン、Ｋ４……第４
接続ライン。 FIG. 1 is a block diagram showing an electrical configuration related to the generation of hold tone in a telephone according to the present invention, and FIG. 2 is a block diagram of a conventional example. 5... Speech network circuit, 6... Speaker, 7... Call recording and/or call monitor terminal, 8... Hold tone generation circuit, 10... Changeover switch circuit, 11... Changeover key, P1... 1 fixed contact, P2...second fixed contact, P3...third fixed contact, P4...fourth fixed contact, l1...call signal line, K1...first connection line, K2...second connection line , K3...Third connection line, K4...Fourth
connection line.

Claims

[Scope of claim for utility model registration] A speech network circuit, a speaker connected to the speech network circuit via a call signal line, a call recording and/or call monitor terminal, and a hold tone that generates hold music when on hold. A changeover switch circuit having a generating circuit, a changeover switch circuit having first to fourth fixed contacts, and manual setting means for setting a switching state of the changeover switch circuit, wherein the first fixed contact of the changeover switch circuit is connected to the changeover switch circuit through a first connection line. is connected to the speech network circuit, the second fixed contact is connected to the music-on-hold generation circuit via a second connection line, and the third fixed contact is connected to the call signal line via a third connection line;
The fourth fixed contact is connected to the call recording and/or call monitoring terminal via the fourth connection line, and the first fixed contact and the second fixed contact are connected and the third fixed contact is connected by operating the manual setting means. a first switching state in which the fixed contact and the fourth fixed contact are connected;
It is characterized in that it is possible to selectively switch between two switching states: a second switching state in which the first fixed contact and the fourth fixed contact are connected and the second fixed contact and the third fixed contact are connected. telephone.