JPS5661880A - Call data save system - Google Patents

Call data save system

Info

Publication number
JPS5661880A
JPS5661880A JP13647979A JP13647979A JPS5661880A JP S5661880 A JPS5661880 A JP S5661880A JP 13647979 A JP13647979 A JP 13647979A JP 13647979 A JP13647979 A JP 13647979A JP S5661880 A JPS5661880 A JP S5661880A
Authority
JP
Japan
Prior art keywords
processor
stand
call
call processing
cpu50
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
JP13647979A
Other languages
Japanese (ja)
Inventor
Yuji Hayano
Kazuyuki Masuo
Tomihide Seo
Kaoru Tokunaga
Tomoyoshi Fukushima
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
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon Electric Co 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, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP13647979A priority Critical patent/JPS5661880A/en
Publication of JPS5661880A publication Critical patent/JPS5661880A/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 programme
    • H04Q3/54541—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 programme using multi-processor systems
    • H04Q3/54558—Redundancy, stand-by

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To restart call processing rapidly even in in-use/stand-by switching by saving call data without adding special hardware, by using the connection route between CPU, performing ordinary call processing, and a peripheral processor. CONSTITUTION:Through inter-processor communication lines 201a and 201b, CPU50 and doubled peripheral processor 21 are connected together and line concentrator 11 is connected to processor 21 to constitute the exchange system. Processor 21 of this system is provided with peripheral processor memory units 211a and 211b, microprocessors 212a and 212b, and communication controllers 213a and 213b respectively and while one system is used as in-use one, the other is used as stand-by one. Call information stored in memory unit 211a or 211b of the in-use system is transferred to CPU50 at the interval of a constant period or constant process and further transferred to memory unit 211b or 211a of the stand-by system to save the call information, so that the call processing can be restarted rapidly even in in-use/ stand-by switching.
JP13647979A 1979-10-24 1979-10-24 Call data save system Pending JPS5661880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13647979A JPS5661880A (en) 1979-10-24 1979-10-24 Call data save system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13647979A JPS5661880A (en) 1979-10-24 1979-10-24 Call data save system

Publications (1)

Publication Number Publication Date
JPS5661880A true JPS5661880A (en) 1981-05-27

Family

ID=15176090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13647979A Pending JPS5661880A (en) 1979-10-24 1979-10-24 Call data save system

Country Status (1)

Country Link
JP (1) JPS5661880A (en)

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