JPS61228798A - ボタン電話装置 - Google Patents

ボタン電話装置

Info

Publication number
JPS61228798A
JPS61228798A JP7021185A JP7021185A JPS61228798A JP S61228798 A JPS61228798 A JP S61228798A JP 7021185 A JP7021185 A JP 7021185A JP 7021185 A JP7021185 A JP 7021185A JP S61228798 A JPS61228798 A JP S61228798A
Authority
JP
Japan
Prior art keywords
button
usage
telephone
telephone set
code number
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
JP7021185A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0353838B2 (enExample
Inventor
Katsushige Sato
佐藤　勝重
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP7021185A priority Critical patent/JPS61228798A/ja
Publication of JPS61228798A publication Critical patent/JPS61228798A/ja
Publication of JPH0353838B2 publication Critical patent/JPH0353838B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/38—Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP7021185A 1985-04-03 1985-04-03 ボタン電話装置 Granted JPS61228798A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7021185A JPS61228798A (ja) 1985-04-03 1985-04-03 ボタン電話装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7021185A JPS61228798A (ja) 1985-04-03 1985-04-03 ボタン電話装置

Publications (2)

Publication Number Publication Date
JPS61228798A true JPS61228798A (ja) 1986-10-11
JPH0353838B2 JPH0353838B2 (enExample) 1991-08-16

Family

ID=13424958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7021185A Granted JPS61228798A (ja) 1985-04-03 1985-04-03 ボタン電話装置

Country Status (1)

Country Link
JP (1) JPS61228798A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0290850A (ja) * 1988-09-28 1990-03-30 Hitachi Terekomu Technol:Kk 端末装置認識番号による端末回線置換方式

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0290850A (ja) * 1988-09-28 1990-03-30 Hitachi Terekomu Technol:Kk 端末装置認識番号による端末回線置換方式

Also Published As

Publication number Publication date
JPH0353838B2 (enExample) 1991-08-16

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Legal Events

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EXPY Cancellation because of completion of term