JPS52125211A - Busy lamp display system - Google Patents

Busy lamp display system

Info

Publication number
JPS52125211A
JPS52125211A JP4130276A JP4130276A JPS52125211A JP S52125211 A JPS52125211 A JP S52125211A JP 4130276 A JP4130276 A JP 4130276A JP 4130276 A JP4130276 A JP 4130276A JP S52125211 A JPS52125211 A JP S52125211A
Authority
JP
Japan
Prior art keywords
display system
lamp display
busy
busy lamp
drop
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
JP4130276A
Other languages
Japanese (ja)
Inventor
Akira Fujii
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4130276A priority Critical patent/JPS52125211A/en
Publication of JPS52125211A publication Critical patent/JPS52125211A/en
Pending 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)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To prevent the busy condition by handset drop, by displaying the busy display due to the telephone handset drop and the busy display under call thru the discrimiantion to the repeater console.
JP4130276A 1976-04-14 1976-04-14 Busy lamp display system Pending JPS52125211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4130276A JPS52125211A (en) 1976-04-14 1976-04-14 Busy lamp display system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4130276A JPS52125211A (en) 1976-04-14 1976-04-14 Busy lamp display system

Publications (1)

Publication Number Publication Date
JPS52125211A true JPS52125211A (en) 1977-10-20

Family

ID=12604668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4130276A Pending JPS52125211A (en) 1976-04-14 1976-04-14 Busy lamp display system

Country Status (1)

Country Link
JP (1) JPS52125211A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4410651Y1 (en) * 1966-10-03 1969-04-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4410651Y1 (en) * 1966-10-03 1969-04-30

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