JPS5553959A - False calling device - Google Patents

False calling device

Info

Publication number
JPS5553959A
JPS5553959A JP12748078A JP12748078A JPS5553959A JP S5553959 A JPS5553959 A JP S5553959A JP 12748078 A JP12748078 A JP 12748078A JP 12748078 A JP12748078 A JP 12748078A JP S5553959 A JPS5553959 A JP S5553959A
Authority
JP
Japan
Prior art keywords
circuit
test
false
subscriber
signal systems
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
JP12748078A
Other languages
English (en)
Inventor
Masaharu Ito
Sadao Furukawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12748078A priority Critical patent/JPS5553959A/ja
Publication of JPS5553959A publication Critical patent/JPS5553959A/ja
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
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/32—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges
    • H04M3/323—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges for the arrangements providing the connection (test connection, test call, call simulation)

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
JP12748078A 1978-10-17 1978-10-17 False calling device Pending JPS5553959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12748078A JPS5553959A (en) 1978-10-17 1978-10-17 False calling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12748078A JPS5553959A (en) 1978-10-17 1978-10-17 False calling device

Publications (1)

Publication Number Publication Date
JPS5553959A true JPS5553959A (en) 1980-04-19

Family

ID=14960972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12748078A Pending JPS5553959A (en) 1978-10-17 1978-10-17 False calling device

Country Status (1)

Country Link
JP (1) JPS5553959A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62105656U (ja) * 1985-12-23 1987-07-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62105656U (ja) * 1985-12-23 1987-07-06

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