JPS5671358A - Control system for button telephone - Google Patents

Control system for button telephone

Info

Publication number
JPS5671358A
JPS5671358A JP14850579A JP14850579A JPS5671358A JP S5671358 A JPS5671358 A JP S5671358A JP 14850579 A JP14850579 A JP 14850579A JP 14850579 A JP14850579 A JP 14850579A JP S5671358 A JPS5671358 A JP S5671358A
Authority
JP
Japan
Prior art keywords
telephone set
button telephone
telephone
button
bit
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
JP14850579A
Other languages
English (en)
Inventor
Shigeo Yamazaki
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
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP14850579A priority Critical patent/JPS5671358A/ja
Publication of JPS5671358A publication Critical patent/JPS5671358A/ja
Pending 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
JP14850579A 1979-11-15 1979-11-15 Control system for button telephone Pending JPS5671358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14850579A JPS5671358A (en) 1979-11-15 1979-11-15 Control system for button telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14850579A JPS5671358A (en) 1979-11-15 1979-11-15 Control system for button telephone

Publications (1)

Publication Number Publication Date
JPS5671358A true JPS5671358A (en) 1981-06-13

Family

ID=15454254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14850579A Pending JPS5671358A (en) 1979-11-15 1979-11-15 Control system for button telephone

Country Status (1)

Country Link
JP (1) JPS5671358A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169296A (ja) * 1983-03-17 1984-09-25 Iwatsu Electric Co Ltd キ−テレホン伝送方式
JPS6031394A (ja) * 1983-08-01 1985-02-18 Meisei Electric Co Ltd ボタン電話装置の音声信号と制御信号の伝送方式
JPS61107897A (ja) * 1984-10-30 1986-05-26 Nec Corp ボタン電話装置
JPS61177891A (ja) * 1985-02-01 1986-08-09 Matsushita Electric Ind Co Ltd デイジタル内線バス端末装置
JPH03140087A (ja) * 1989-10-26 1991-06-14 Matsushita Electric Works Ltd 電話システム

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169296A (ja) * 1983-03-17 1984-09-25 Iwatsu Electric Co Ltd キ−テレホン伝送方式
JPS6031394A (ja) * 1983-08-01 1985-02-18 Meisei Electric Co Ltd ボタン電話装置の音声信号と制御信号の伝送方式
JPS61107897A (ja) * 1984-10-30 1986-05-26 Nec Corp ボタン電話装置
JPS61177891A (ja) * 1985-02-01 1986-08-09 Matsushita Electric Ind Co Ltd デイジタル内線バス端末装置
JPH03140087A (ja) * 1989-10-26 1991-06-14 Matsushita Electric Works Ltd 電話システム

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