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JPS52137909A - Connection system for common control type automatic interior switchboard - Google Patents

Connection system for common control type automatic interior switchboard

Info

Publication number
JPS52137909A
JPS52137909A JP5489876A JP5489876A JPS52137909A JP S52137909 A JPS52137909 A JP S52137909A JP 5489876 A JP5489876 A JP 5489876A JP 5489876 A JP5489876 A JP 5489876A JP S52137909 A JPS52137909 A JP S52137909A
Authority
JP
Japan
Prior art keywords
common control
connection system
control type
type automatic
automatic interior
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
JP5489876A
Other languages
Japanese (ja)
Other versions
JPS5654117B2 (en
Inventor
Toshio Matsuda
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 JP5489876A priority Critical patent/JPS52137909A/en
Publication of JPS52137909A publication Critical patent/JPS52137909A/en
Publication of JPS5654117B2 publication Critical patent/JPS5654117B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/48—Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To make it possible to accurately discriminate the outside line number, and to transmit the call-back information, by installing the function button to the outside line receiving telephone.
JP5489876A 1976-05-14 1976-05-14 Connection system for common control type automatic interior switchboard Granted JPS52137909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5489876A JPS52137909A (en) 1976-05-14 1976-05-14 Connection system for common control type automatic interior switchboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5489876A JPS52137909A (en) 1976-05-14 1976-05-14 Connection system for common control type automatic interior switchboard

Publications (2)

Publication Number Publication Date
JPS52137909A true JPS52137909A (en) 1977-11-17
JPS5654117B2 JPS5654117B2 (en) 1981-12-23

Family

ID=12983410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5489876A Granted JPS52137909A (en) 1976-05-14 1976-05-14 Connection system for common control type automatic interior switchboard

Country Status (1)

Country Link
JP (1) JPS52137909A (en)

Also Published As

Publication number Publication date
JPS5654117B2 (en) 1981-12-23

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