JPS59104661U - 公衆電話機の被呼者応答監視装置 - Google Patents

公衆電話機の被呼者応答監視装置

Info

Publication number
JPS59104661U
JPS59104661U JP20220782U JP20220782U JPS59104661U JP S59104661 U JPS59104661 U JP S59104661U JP 20220782 U JP20220782 U JP 20220782U JP 20220782 U JP20220782 U JP 20220782U JP S59104661 U JPS59104661 U JP S59104661U
Authority
JP
Japan
Prior art keywords
response monitoring
called party
monitoring device
response
public telephones
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.)
Granted
Application number
JP20220782U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6342606Y2 (enrdf_load_stackoverflow
Inventor
徳丸　健
菊地原　友直
多飛市　幸男
仲田　淳嗣
江原　正光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP20220782U priority Critical patent/JPS59104661U/ja
Publication of JPS59104661U publication Critical patent/JPS59104661U/ja
Application granted granted Critical
Publication of JPS6342606Y2 publication Critical patent/JPS6342606Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)
  • Prepayment Telephone Systems (AREA)
JP20220782U 1982-12-28 1982-12-28 公衆電話機の被呼者応答監視装置 Granted JPS59104661U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20220782U JPS59104661U (ja) 1982-12-28 1982-12-28 公衆電話機の被呼者応答監視装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20220782U JPS59104661U (ja) 1982-12-28 1982-12-28 公衆電話機の被呼者応答監視装置

Publications (2)

Publication Number Publication Date
JPS59104661U true JPS59104661U (ja) 1984-07-14
JPS6342606Y2 JPS6342606Y2 (enrdf_load_stackoverflow) 1988-11-08

Family

ID=30427685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20220782U Granted JPS59104661U (ja) 1982-12-28 1982-12-28 公衆電話機の被呼者応答監視装置

Country Status (1)

Country Link
JP (1) JPS59104661U (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6342606Y2 (enrdf_load_stackoverflow) 1988-11-08

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