JPS56132856A - Manual instantaneous tandem connection system - Google Patents

Manual instantaneous tandem connection system

Info

Publication number
JPS56132856A
JPS56132856A JP3654880A JP3654880A JPS56132856A JP S56132856 A JPS56132856 A JP S56132856A JP 3654880 A JP3654880 A JP 3654880A JP 3654880 A JP3654880 A JP 3654880A JP S56132856 A JPS56132856 A JP S56132856A
Authority
JP
Japan
Prior art keywords
trunk
terminal
operator
att
incoming
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
JP3654880A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6132861B2 (enrdf_load_stackoverflow
Inventor
Kunihiko Fujiwara
Toshiyuki Kobayashi
Mutsuo Ezaka
Kozo Nakamura
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.)
JAPANESE NATIONAL RAILWAYS<JNR>
Fujitsu Ltd
Japan National Railways
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Fujitsu Ltd
Japan National Railways
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 JAPANESE NATIONAL RAILWAYS<JNR>, Fujitsu Ltd, Japan National Railways filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP3654880A priority Critical patent/JPS56132856A/ja
Publication of JPS56132856A publication Critical patent/JPS56132856A/ja
Publication of JPS6132861B2 publication Critical patent/JPS6132861B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Exchange Systems With Centralized Control (AREA)
JP3654880A 1980-03-22 1980-03-22 Manual instantaneous tandem connection system Granted JPS56132856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3654880A JPS56132856A (en) 1980-03-22 1980-03-22 Manual instantaneous tandem connection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3654880A JPS56132856A (en) 1980-03-22 1980-03-22 Manual instantaneous tandem connection system

Publications (2)

Publication Number Publication Date
JPS56132856A true JPS56132856A (en) 1981-10-17
JPS6132861B2 JPS6132861B2 (enrdf_load_stackoverflow) 1986-07-30

Family

ID=12472813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3654880A Granted JPS56132856A (en) 1980-03-22 1980-03-22 Manual instantaneous tandem connection system

Country Status (1)

Country Link
JP (1) JPS56132856A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6132861B2 (enrdf_load_stackoverflow) 1986-07-30

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