JPS51144502A - Telephone set - Google Patents

Telephone set

Info

Publication number
JPS51144502A
JPS51144502A JP50068750A JP6875075A JPS51144502A JP S51144502 A JPS51144502 A JP S51144502A JP 50068750 A JP50068750 A JP 50068750A JP 6875075 A JP6875075 A JP 6875075A JP S51144502 A JPS51144502 A JP S51144502A
Authority
JP
Japan
Prior art keywords
telephone set
line
office line
discriminating
subscriber
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
JP50068750A
Other languages
Japanese (ja)
Other versions
JPS5756825B2 (en
Inventor
Yasuhiro Ono
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.)
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
Original Assignee
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
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 Iwatsu Electric Co Ltd, Iwasaki Tsushinki KK filed Critical Iwatsu Electric Co Ltd
Priority to JP50068750A priority Critical patent/JPS51144502A/en
Publication of JPS51144502A publication Critical patent/JPS51144502A/en
Publication of JPS5756825B2 publication Critical patent/JPS5756825B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/71—Substation extension arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:Discriminating in simple manner the reception from an office line from that of extension line in a subscriber having plural MF dial type telephones commonly using the office line.
JP50068750A 1975-06-06 1975-06-06 Telephone set Granted JPS51144502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50068750A JPS51144502A (en) 1975-06-06 1975-06-06 Telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50068750A JPS51144502A (en) 1975-06-06 1975-06-06 Telephone set

Publications (2)

Publication Number Publication Date
JPS51144502A true JPS51144502A (en) 1976-12-11
JPS5756825B2 JPS5756825B2 (en) 1982-12-01

Family

ID=13382746

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50068750A Granted JPS51144502A (en) 1975-06-06 1975-06-06 Telephone set

Country Status (1)

Country Link
JP (1) JPS51144502A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63193760A (en) * 1987-02-06 1988-08-11 Iwatsu Electric Co Ltd Network connection control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63193760A (en) * 1987-02-06 1988-08-11 Iwatsu Electric Co Ltd Network connection control device

Also Published As

Publication number Publication date
JPS5756825B2 (en) 1982-12-01

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