JPS5331911A - Control system for subscriber dial-tone - Google Patents

Control system for subscriber dial-tone

Info

Publication number
JPS5331911A
JPS5331911A JP10575976A JP10575976A JPS5331911A JP S5331911 A JPS5331911 A JP S5331911A JP 10575976 A JP10575976 A JP 10575976A JP 10575976 A JP10575976 A JP 10575976A JP S5331911 A JPS5331911 A JP S5331911A
Authority
JP
Japan
Prior art keywords
tone
control system
dial
subscriber dial
call
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
JP10575976A
Other languages
Japanese (ja)
Inventor
Sadao Furukawa
Toyohiko Sato
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 JP10575976A priority Critical patent/JPS5331911A/en
Publication of JPS5331911A publication Critical patent/JPS5331911A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

PURPOSE:To cut off the dial-tone circuit by breaking the current supply to the subscriber group stored in the call detecting means and to restore the call detecting means by the signal given from the common control circuit when the call reatment is completed. Thus, the reliability is enhanced for the apparatus.
JP10575976A 1976-09-06 1976-09-06 Control system for subscriber dial-tone Pending JPS5331911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10575976A JPS5331911A (en) 1976-09-06 1976-09-06 Control system for subscriber dial-tone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10575976A JPS5331911A (en) 1976-09-06 1976-09-06 Control system for subscriber dial-tone

Publications (1)

Publication Number Publication Date
JPS5331911A true JPS5331911A (en) 1978-03-25

Family

ID=14416138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10575976A Pending JPS5331911A (en) 1976-09-06 1976-09-06 Control system for subscriber dial-tone

Country Status (1)

Country Link
JP (1) JPS5331911A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56139507A (en) * 1980-04-01 1981-10-31 Mitsubishi Rayon Co Ltd Ultraviolet-curable resin composition having good smoothing property
US6794055B2 (en) 2003-02-03 2004-09-21 Ppg Industries Ohio, Inc. Alkyd-based free radical cured wood stains
US7001667B2 (en) 2002-07-17 2006-02-21 Ppg Industries Ohio, Inc. Alkyd-based free radical wood coating compositions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56139507A (en) * 1980-04-01 1981-10-31 Mitsubishi Rayon Co Ltd Ultraviolet-curable resin composition having good smoothing property
US7001667B2 (en) 2002-07-17 2006-02-21 Ppg Industries Ohio, Inc. Alkyd-based free radical wood coating compositions
US7387843B2 (en) 2002-07-17 2008-06-17 Ppg Industries Ohio, Inc. Alkyd-based free radical wood coating compositions
US6794055B2 (en) 2003-02-03 2004-09-21 Ppg Industries Ohio, Inc. Alkyd-based free radical cured wood stains

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