JPH0273852U - - Google Patents

Info

Publication number
JPH0273852U
JPH0273852U JP15311388U JP15311388U JPH0273852U JP H0273852 U JPH0273852 U JP H0273852U JP 15311388 U JP15311388 U JP 15311388U JP 15311388 U JP15311388 U JP 15311388U JP H0273852 U JPH0273852 U JP H0273852U
Authority
JP
Japan
Prior art keywords
telephone
sends out
hook state
call
detection signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15311388U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP15311388U priority Critical patent/JPH0273852U/ja
Publication of JPH0273852U publication Critical patent/JPH0273852U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は本考案の一実施例を示すブロツク図で
ある。 1……従来の電話機回路、2……アラーム送出
回路、3……オフフツクタイマー回路、4……音
声レベル検出回路、B……ベル、H……ハイブリ
ツド、HS……フツクスイツチ、R……受話器、
T……送話器。

Claims (1)

    【実用新案登録請求の範囲】
  1. 通話終了後及び電話機の誤操作等により送受話
    器の置き忘れが発生した場合の通話音のないオフ
    フツク状態が予め設定した時間以上になつたこと
    を検出して検出信号を送出する検出部と、この検
    出部からの前記検出信号によつて自動的に警報音
    を送出する警報送出部とを有し、長時間に渡る無
    通話のオフフツク状態を防止することを特徴とす
    る電話機。
JP15311388U 1988-11-24 1988-11-24 Pending JPH0273852U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15311388U JPH0273852U (ja) 1988-11-24 1988-11-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15311388U JPH0273852U (ja) 1988-11-24 1988-11-24

Publications (1)

Publication Number Publication Date
JPH0273852U true JPH0273852U (ja) 1990-06-06

Family

ID=31428660

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15311388U Pending JPH0273852U (ja) 1988-11-24 1988-11-24

Country Status (1)

Country Link
JP (1) JPH0273852U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03101059U (ja) * 1989-11-08 1991-10-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03101059U (ja) * 1989-11-08 1991-10-22

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