JPS577666A - Answer delay recall system - Google Patents

Answer delay recall system

Info

Publication number
JPS577666A
JPS577666A JP8202980A JP8202980A JPS577666A JP S577666 A JPS577666 A JP S577666A JP 8202980 A JP8202980 A JP 8202980A JP 8202980 A JP8202980 A JP 8202980A JP S577666 A JPS577666 A JP S577666A
Authority
JP
Japan
Prior art keywords
answer
time
memory
called subscriber
detecting
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
JP8202980A
Other languages
Japanese (ja)
Inventor
Kozo Nakamura
Toshiyuki Kobayashi
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 JP8202980A priority Critical patent/JPS577666A/en
Publication of JPS577666A publication Critical patent/JPS577666A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored program

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)

Abstract

PURPOSE:To avoid in vain holding of related equipment for a long time, by releasing a request originating connection path when a callsed subscriber does not answer within a predetermined no-answer time. CONSTITUTION:A central controller CC monitors the answer of a called subscriber B by the scanning point S2 of a central office trunk COT and, when detecting the answer of the called subscriber B within a predetermined no-answer time T, interrupts the measurement of an elaspe time (t) (<T) by a clocking memory TM in a main storage device MM and is unrelated with a call memory CM. When the called subscriber B does not answer within the said time T, the controller CC detecting the elapse time (t), measured by the clocking memory TM, reaching the T and, after referring to the contents of the call memory, disconnects an extension A from the central office trunk COT to make an answer delay recall display on an attendant board ATT.
JP8202980A 1980-06-17 1980-06-17 Answer delay recall system Pending JPS577666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8202980A JPS577666A (en) 1980-06-17 1980-06-17 Answer delay recall system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8202980A JPS577666A (en) 1980-06-17 1980-06-17 Answer delay recall system

Publications (1)

Publication Number Publication Date
JPS577666A true JPS577666A (en) 1982-01-14

Family

ID=13763094

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8202980A Pending JPS577666A (en) 1980-06-17 1980-06-17 Answer delay recall system

Country Status (1)

Country Link
JP (1) JPS577666A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134694A (en) * 1975-05-19 1976-11-22 Hitachi Ltd Liquid chromatography column regeneration system
JPS59229960A (en) * 1983-06-13 1984-12-24 Hitachi Ltd Incoming transfer system
JPS62135055A (en) * 1985-12-06 1987-06-18 Nec Eng Ltd Extension representative automatic callback system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134694A (en) * 1975-05-19 1976-11-22 Hitachi Ltd Liquid chromatography column regeneration system
JPS59229960A (en) * 1983-06-13 1984-12-24 Hitachi Ltd Incoming transfer system
JPS62135055A (en) * 1985-12-06 1987-06-18 Nec Eng Ltd Extension representative automatic callback system

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