JPS57162862A - Callout signal control system - Google Patents

Callout signal control system

Info

Publication number
JPS57162862A
JPS57162862A JP4824581A JP4824581A JPS57162862A JP S57162862 A JPS57162862 A JP S57162862A JP 4824581 A JP4824581 A JP 4824581A JP 4824581 A JP4824581 A JP 4824581A JP S57162862 A JPS57162862 A JP S57162862A
Authority
JP
Japan
Prior art keywords
ringing
signal
inter
controller
control
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.)
Granted
Application number
JP4824581A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6310630B2 (enExample
Inventor
Shunichi Naito
Hiroshi Ishikawa
Shigeo Kodaira
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 JP4824581A priority Critical patent/JPS57162862A/ja
Publication of JPS57162862A publication Critical patent/JPS57162862A/ja
Publication of JPS6310630B2 publication Critical patent/JPS6310630B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP4824581A 1981-03-31 1981-03-31 Callout signal control system Granted JPS57162862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4824581A JPS57162862A (en) 1981-03-31 1981-03-31 Callout signal control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4824581A JPS57162862A (en) 1981-03-31 1981-03-31 Callout signal control system

Publications (2)

Publication Number Publication Date
JPS57162862A true JPS57162862A (en) 1982-10-06
JPS6310630B2 JPS6310630B2 (enExample) 1988-03-08

Family

ID=12798051

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4824581A Granted JPS57162862A (en) 1981-03-31 1981-03-31 Callout signal control system

Country Status (1)

Country Link
JP (1) JPS57162862A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6116661A (ja) * 1984-07-03 1986-01-24 Fujitsu Ltd 呼出信号送出装置
JPS6167345A (ja) * 1984-09-11 1986-04-07 Rohm Co Ltd 送受切換装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5328317A (en) * 1976-08-30 1978-03-16 Hitachi Ltd Control system of subscriber's calling signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5328317A (en) * 1976-08-30 1978-03-16 Hitachi Ltd Control system of subscriber's calling signal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6116661A (ja) * 1984-07-03 1986-01-24 Fujitsu Ltd 呼出信号送出装置
JPS6167345A (ja) * 1984-09-11 1986-04-07 Rohm Co Ltd 送受切換装置

Also Published As

Publication number Publication date
JPS6310630B2 (enExample) 1988-03-08

Similar Documents

Publication Publication Date Title
JPS5434709A (en) Call interruption system in facsimile communication
JPS57162862A (en) Callout signal control system
JPS54812A (en) Repeating system
JPS5398709A (en) Test system for communicating line
JPS53120308A (en) Automatic channel switching system
JPS555557A (en) Polling control system
JPS5586255A (en) Remote intra-office exchange test system
JPS5422103A (en) Transmisson-reception switch control system for semidouble communication
JPS5416945A (en) Signal transmission system
JPS566589A (en) Multifrequency signal sending circuit
JPS56128076A (en) Trigger circuit
JPS55130244A (en) Radio communication unit
JPS53129508A (en) Loop detection system for subscriber's line
JPS5381003A (en) In-band signal system
JPS53105923A (en) Automatic test system for ringer
JPS556950A (en) Supervisory system
JPS53113409A (en) Pbx multi-service unit incorporating test circuit
JPS53139072A (en) Controller
DE3786305D1 (de) Ueberwachungseinheit mit signalisierungsmembran und automatischer steuerung des rueckstaendeabladens, anwendbar an fahrbaren textilreinigungsvorrichtungen.
JPS544007A (en) Identifying system of two terminals and two common subscribers
JPS57104350A (en) Communication line switching system
JPS54148404A (en) Signal sampling system for time-division multiple device
JPS5413720A (en) Communication circuit controller
JPS53145516A (en) Video signal switching system
JPS5342613A (en) Transmission control system of call signal to several party lines