JPS60117860A - 擬似呼システムの信号音検出方式 - Google Patents

擬似呼システムの信号音検出方式

Info

Publication number
JPS60117860A
JPS60117860A JP22622583A JP22622583A JPS60117860A JP S60117860 A JPS60117860 A JP S60117860A JP 22622583 A JP22622583 A JP 22622583A JP 22622583 A JP22622583 A JP 22622583A JP S60117860 A JPS60117860 A JP S60117860A
Authority
JP
Japan
Prior art keywords
signal
signal tone
circuit
telephone exchange
tone
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
JP22622583A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0256870B2 (enrdf_load_stackoverflow
Inventor
Hiroshi Fujimoto
洋 藤本
Keiji Sato
佐藤　啓次
Jiro Osawa
大沢　二郎
Manabu Oda
学 織田
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP22622583A priority Critical patent/JPS60117860A/ja
Publication of JPS60117860A publication Critical patent/JPS60117860A/ja
Publication of JPH0256870B2 publication Critical patent/JPH0256870B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/46—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies comprising means for distinguishing between a signalling current of predetermined frequency and a complex current containing that frequency, e.g. speech current
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
JP22622583A 1983-11-29 1983-11-29 擬似呼システムの信号音検出方式 Granted JPS60117860A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22622583A JPS60117860A (ja) 1983-11-29 1983-11-29 擬似呼システムの信号音検出方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22622583A JPS60117860A (ja) 1983-11-29 1983-11-29 擬似呼システムの信号音検出方式

Publications (2)

Publication Number Publication Date
JPS60117860A true JPS60117860A (ja) 1985-06-25
JPH0256870B2 JPH0256870B2 (enrdf_load_stackoverflow) 1990-12-03

Family

ID=16841852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22622583A Granted JPS60117860A (ja) 1983-11-29 1983-11-29 擬似呼システムの信号音検出方式

Country Status (1)

Country Link
JP (1) JPS60117860A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6235747A (ja) * 1985-08-09 1987-02-16 Hitachi Ltd 網制御装置の呼出し信号の自己テスト回路
JPH0329551A (ja) * 1989-06-27 1991-02-07 Fujitsu Ltd 通信機器の試験処理方式
JPH0795315A (ja) * 1993-09-24 1995-04-07 Murata Mach Ltd ファクシミリ装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6235747A (ja) * 1985-08-09 1987-02-16 Hitachi Ltd 網制御装置の呼出し信号の自己テスト回路
JPH0329551A (ja) * 1989-06-27 1991-02-07 Fujitsu Ltd 通信機器の試験処理方式
JPH0795315A (ja) * 1993-09-24 1995-04-07 Murata Mach Ltd ファクシミリ装置

Also Published As

Publication number Publication date
JPH0256870B2 (enrdf_load_stackoverflow) 1990-12-03

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