JPS5386505A - Call-back connecting system - Google Patents

Call-back connecting system

Info

Publication number
JPS5386505A
JPS5386505A JP119477A JP119477A JPS5386505A JP S5386505 A JPS5386505 A JP S5386505A JP 119477 A JP119477 A JP 119477A JP 119477 A JP119477 A JP 119477A JP S5386505 A JPS5386505 A JP S5386505A
Authority
JP
Japan
Prior art keywords
call
connecting system
back connecting
transmitting register
dxtension
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
JP119477A
Other languages
Japanese (ja)
Inventor
Michihiro Tanihara
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 JP119477A priority Critical patent/JPS5386505A/en
Publication of JPS5386505A publication Critical patent/JPS5386505A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—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)

Abstract

PURPOSE:To simplify the operation of the dxtension subscriber and then to shorten the holding time of the transmitting register, by providing a relay, which is actuated only when the called extension is being busy at the call-back connection time, into the transmitting register.
JP119477A 1977-01-11 1977-01-11 Call-back connecting system Pending JPS5386505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP119477A JPS5386505A (en) 1977-01-11 1977-01-11 Call-back connecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP119477A JPS5386505A (en) 1977-01-11 1977-01-11 Call-back connecting system

Publications (1)

Publication Number Publication Date
JPS5386505A true JPS5386505A (en) 1978-07-31

Family

ID=11494638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP119477A Pending JPS5386505A (en) 1977-01-11 1977-01-11 Call-back connecting system

Country Status (1)

Country Link
JP (1) JPS5386505A (en)

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