JPS53124008A - Call signal transmission system - Google Patents

Call signal transmission system

Info

Publication number
JPS53124008A
JPS53124008A JP3846277A JP3846277A JPS53124008A JP S53124008 A JPS53124008 A JP S53124008A JP 3846277 A JP3846277 A JP 3846277A JP 3846277 A JP3846277 A JP 3846277A JP S53124008 A JPS53124008 A JP S53124008A
Authority
JP
Japan
Prior art keywords
call signal
signal transmission
transmission system
subscriber
signal
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
JP3846277A
Other languages
Japanese (ja)
Inventor
Hajime Yamada
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 JP3846277A priority Critical patent/JPS53124008A/en
Publication of JPS53124008A publication Critical patent/JPS53124008A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/02—Calling substations, e.g. by ringing

Abstract

PURPOSE:To realize an economical use of the subscriber circuit for the first-ringing system, by dividing both the call signal and the selection signal into plural phases and then sending the call signal of the first phase to the subscriber.
JP3846277A 1977-04-06 1977-04-06 Call signal transmission system Pending JPS53124008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3846277A JPS53124008A (en) 1977-04-06 1977-04-06 Call signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3846277A JPS53124008A (en) 1977-04-06 1977-04-06 Call signal transmission system

Publications (1)

Publication Number Publication Date
JPS53124008A true JPS53124008A (en) 1978-10-30

Family

ID=12525913

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3846277A Pending JPS53124008A (en) 1977-04-06 1977-04-06 Call signal transmission system

Country Status (1)

Country Link
JP (1) JPS53124008A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56152361A (en) * 1980-03-31 1981-11-25 Int Standard Electric Corp Analog subscriber/repeater module with distributed call signal source and call trip
JPS5768959A (en) * 1980-10-17 1982-04-27 Nec Corp Call signal transmission system for electronic exchanger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56152361A (en) * 1980-03-31 1981-11-25 Int Standard Electric Corp Analog subscriber/repeater module with distributed call signal source and call trip
JPH0342534B2 (en) * 1980-03-31 1991-06-27
JPS5768959A (en) * 1980-10-17 1982-04-27 Nec Corp Call signal transmission system for electronic exchanger

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