JPS56119564A - Key telephone system - Google Patents

Key telephone system

Info

Publication number
JPS56119564A
JPS56119564A JP2161580A JP2161580A JPS56119564A JP S56119564 A JPS56119564 A JP S56119564A JP 2161580 A JP2161580 A JP 2161580A JP 2161580 A JP2161580 A JP 2161580A JP S56119564 A JPS56119564 A JP S56119564A
Authority
JP
Japan
Prior art keywords
key telephone
devices
kts
telephone set
extension
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
JP2161580A
Other languages
English (en)
Other versions
JPS6339158B2 (ja
Inventor
Teruyuki Kubo
Kazuyuki Yamamoto
Isao Kawashima
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP2161580A priority Critical patent/JPS56119564A/ja
Publication of JPS56119564A publication Critical patent/JPS56119564A/ja
Publication of JPS6339158B2 publication Critical patent/JPS6339158B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP2161580A 1980-02-25 1980-02-25 Key telephone system Granted JPS56119564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2161580A JPS56119564A (en) 1980-02-25 1980-02-25 Key telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2161580A JPS56119564A (en) 1980-02-25 1980-02-25 Key telephone system

Publications (2)

Publication Number Publication Date
JPS56119564A true JPS56119564A (en) 1981-09-19
JPS6339158B2 JPS6339158B2 (ja) 1988-08-03

Family

ID=12059944

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2161580A Granted JPS56119564A (en) 1980-02-25 1980-02-25 Key telephone system

Country Status (1)

Country Link
JP (1) JPS56119564A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922498A (ja) * 1982-07-29 1984-02-04 Toshiba Corp 回線共用電話システム
JPS6285542A (ja) * 1985-10-11 1987-04-20 Hitachi Ltd 構内交換機網における局線着信呼処理方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922498A (ja) * 1982-07-29 1984-02-04 Toshiba Corp 回線共用電話システム
JPS6285542A (ja) * 1985-10-11 1987-04-20 Hitachi Ltd 構内交換機網における局線着信呼処理方法

Also Published As

Publication number Publication date
JPS6339158B2 (ja) 1988-08-03

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