JPS5289004A - Detecting process for concentrated call - Google Patents

Detecting process for concentrated call

Info

Publication number
JPS5289004A
JPS5289004A JP559076A JP559076A JPS5289004A JP S5289004 A JPS5289004 A JP S5289004A JP 559076 A JP559076 A JP 559076A JP 559076 A JP559076 A JP 559076A JP S5289004 A JPS5289004 A JP S5289004A
Authority
JP
Japan
Prior art keywords
call
detecting process
concentrated call
concentrated
detecting
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
JP559076A
Other languages
Japanese (ja)
Inventor
Shige Miyoshi
Shiro Enami
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP559076A priority Critical patent/JPS5289004A/en
Publication of JPS5289004A publication Critical patent/JPS5289004A/en
Pending 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)
  • Interface Circuits In Exchanges (AREA)

Abstract

PURPOSE:To prevent the error ringing of bell by call-detection, after providing plural telephones with one call-detecting-circuit with charging the subscriber's telephone of on-hook state always with cell and earth.
JP559076A 1976-01-20 1976-01-20 Detecting process for concentrated call Pending JPS5289004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP559076A JPS5289004A (en) 1976-01-20 1976-01-20 Detecting process for concentrated call

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP559076A JPS5289004A (en) 1976-01-20 1976-01-20 Detecting process for concentrated call

Publications (1)

Publication Number Publication Date
JPS5289004A true JPS5289004A (en) 1977-07-26

Family

ID=11615442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP559076A Pending JPS5289004A (en) 1976-01-20 1976-01-20 Detecting process for concentrated call

Country Status (1)

Country Link
JP (1) JPS5289004A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS533110A (en) * 1976-06-30 1978-01-12 Oki Electric Ind Co Ltd Subscriber line scanning system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS533110A (en) * 1976-06-30 1978-01-12 Oki Electric Ind Co Ltd Subscriber line scanning system

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