JPH046297B2 - - Google Patents

Info

Publication number
JPH046297B2
JPH046297B2 JP7920382A JP7920382A JPH046297B2 JP H046297 B2 JPH046297 B2 JP H046297B2 JP 7920382 A JP7920382 A JP 7920382A JP 7920382 A JP7920382 A JP 7920382A JP H046297 B2 JPH046297 B2 JP H046297B2
Authority
JP
Japan
Prior art keywords
subscriber
switch
circuit
subscriber line
call
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.)
Expired - Lifetime
Application number
JP7920382A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58197949A (ja
Inventor
Yoshikatsu Shiraishi
Akira Takei
Wataru Takeuchi
Shiro Enami
Kazuhiko Ito
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
Hitachi Ltd
NEC Corp
Oki Electric Industry Co Ltd
NTT Inc
Original Assignee
Fujitsu Ltd
Hitachi Ltd
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
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 Fujitsu Ltd, Hitachi Ltd, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP57079203A priority Critical patent/JPS58197949A/ja
Publication of JPS58197949A publication Critical patent/JPS58197949A/ja
Publication of JPH046297B2 publication Critical patent/JPH046297B2/ja
Granted 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
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/302—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs
    • H04M3/303—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs and using PCM multiplexers, e.g. pair gain systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP57079203A 1982-05-13 1982-05-13 ト−キ送出方式 Granted JPS58197949A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57079203A JPS58197949A (ja) 1982-05-13 1982-05-13 ト−キ送出方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57079203A JPS58197949A (ja) 1982-05-13 1982-05-13 ト−キ送出方式

Publications (2)

Publication Number Publication Date
JPS58197949A JPS58197949A (ja) 1983-11-17
JPH046297B2 true JPH046297B2 (enExample) 1992-02-05

Family

ID=13683389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57079203A Granted JPS58197949A (ja) 1982-05-13 1982-05-13 ト−キ送出方式

Country Status (1)

Country Link
JP (1) JPS58197949A (enExample)

Also Published As

Publication number Publication date
JPS58197949A (ja) 1983-11-17

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