JPS5592067A - Extension connection system of b board incoming call - Google Patents

Extension connection system of b board incoming call

Info

Publication number
JPS5592067A
JPS5592067A JP2579A JP2579A JPS5592067A JP S5592067 A JPS5592067 A JP S5592067A JP 2579 A JP2579 A JP 2579A JP 2579 A JP2579 A JP 2579A JP S5592067 A JPS5592067 A JP S5592067A
Authority
JP
Japan
Prior art keywords
extension
trunk
ext
ict
terminating trunk
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
JP2579A
Other languages
Japanese (ja)
Inventor
Kazuo Kodera
Masaaki Fukumoto
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP2579A priority Critical patent/JPS5592067A/en
Publication of JPS5592067A publication Critical patent/JPS5592067A/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 connect B board incoming call to an extension with a simple operation in a short time by storing previously a terminating trunk and the extension to be connected correspondingly to this trunk. CONSTITUTION:When the central control unit of an exchange detects operator empty information dependent upon the operation button from B board ATT, terminating trunk ICT connected to B board ATT inquires of memory unit REG register contents indicating whether this information corresponds to any extension EXT of the exchange or not. If the pertinent extension is registered, extension EXT corresponding to terminating trunk ICT can be found. After that, the central control unit inspects idle and busy states of extension EXT to be connected to terminating trunk ICT; and if this extension is idle, the central control unit acquires ringing trunk RGT to form a service path between trunk RGT and this extension EXT. Then, the service path between extension EXT and terminating trunk ICT is reserved. Thus, extension EXT corresponding to terminating trunk ICT can be called.
JP2579A 1979-01-05 1979-01-05 Extension connection system of b board incoming call Pending JPS5592067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2579A JPS5592067A (en) 1979-01-05 1979-01-05 Extension connection system of b board incoming call

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2579A JPS5592067A (en) 1979-01-05 1979-01-05 Extension connection system of b board incoming call

Publications (1)

Publication Number Publication Date
JPS5592067A true JPS5592067A (en) 1980-07-12

Family

ID=11462841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2579A Pending JPS5592067A (en) 1979-01-05 1979-01-05 Extension connection system of b board incoming call

Country Status (1)

Country Link
JP (1) JPS5592067A (en)

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