JPS5422705A - Extension subscriber calling system - Google Patents

Extension subscriber calling system

Info

Publication number
JPS5422705A
JPS5422705A JP8729177A JP8729177A JPS5422705A JP S5422705 A JPS5422705 A JP S5422705A JP 8729177 A JP8729177 A JP 8729177A JP 8729177 A JP8729177 A JP 8729177A JP S5422705 A JPS5422705 A JP S5422705A
Authority
JP
Japan
Prior art keywords
calling system
extension subscriber
subscriber calling
representative group
idle line
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
JP8729177A
Other languages
Japanese (ja)
Inventor
Shiyuuji Oka
Seiichi Inoue
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8729177A priority Critical patent/JPS5422705A/en
Publication of JPS5422705A publication Critical patent/JPS5422705A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To enable an optional idle line subscriber to answer by connecting all idle line subscribers within the representative group to the representative group trunk.
JP8729177A 1977-07-22 1977-07-22 Extension subscriber calling system Pending JPS5422705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8729177A JPS5422705A (en) 1977-07-22 1977-07-22 Extension subscriber calling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8729177A JPS5422705A (en) 1977-07-22 1977-07-22 Extension subscriber calling system

Publications (1)

Publication Number Publication Date
JPS5422705A true JPS5422705A (en) 1979-02-20

Family

ID=13910693

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8729177A Pending JPS5422705A (en) 1977-07-22 1977-07-22 Extension subscriber calling system

Country Status (1)

Country Link
JP (1) JPS5422705A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6179398A (en) * 1984-09-27 1986-04-22 Hitachi Ltd Subscriber call system
JPH07307797A (en) * 1994-05-11 1995-11-21 Nippon Idou Tsushin Kk Virtual extension telephone system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6179398A (en) * 1984-09-27 1986-04-22 Hitachi Ltd Subscriber call system
JPH0435115B2 (en) * 1984-09-27 1992-06-10 Hitachi Ltd
JPH07307797A (en) * 1994-05-11 1995-11-21 Nippon Idou Tsushin Kk Virtual extension telephone system

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