JPS53140911A - Failure detection system for audio response unit - Google Patents

Failure detection system for audio response unit

Info

Publication number
JPS53140911A
JPS53140911A JP5531277A JP5531277A JPS53140911A JP S53140911 A JPS53140911 A JP S53140911A JP 5531277 A JP5531277 A JP 5531277A JP 5531277 A JP5531277 A JP 5531277A JP S53140911 A JPS53140911 A JP S53140911A
Authority
JP
Japan
Prior art keywords
detection system
failure detection
response unit
audio response
throught
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
JP5531277A
Other languages
Japanese (ja)
Inventor
Hisao Sakai
Mitsugi Sakaguchi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5531277A priority Critical patent/JPS53140911A/en
Publication of JPS53140911A publication Critical patent/JPS53140911A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To enable to detect failures of unit automatically and during ON-line throught the use of vacant time, by providing a circuit coupling audio output system with PB signal fetch system.
JP5531277A 1977-05-16 1977-05-16 Failure detection system for audio response unit Pending JPS53140911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5531277A JPS53140911A (en) 1977-05-16 1977-05-16 Failure detection system for audio response unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5531277A JPS53140911A (en) 1977-05-16 1977-05-16 Failure detection system for audio response unit

Publications (1)

Publication Number Publication Date
JPS53140911A true JPS53140911A (en) 1978-12-08

Family

ID=12995032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5531277A Pending JPS53140911A (en) 1977-05-16 1977-05-16 Failure detection system for audio response unit

Country Status (1)

Country Link
JP (1) JPS53140911A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6278944A (en) * 1985-10-02 1987-04-11 Fujitsu Ltd Diagnostic system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6278944A (en) * 1985-10-02 1987-04-11 Fujitsu Ltd Diagnostic system

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