JPS58197992A - ボタン電話装置 - Google Patents

ボタン電話装置

Info

Publication number
JPS58197992A
JPS58197992A JP57080901A JP8090182A JPS58197992A JP S58197992 A JPS58197992 A JP S58197992A JP 57080901 A JP57080901 A JP 57080901A JP 8090182 A JP8090182 A JP 8090182A JP S58197992 A JPS58197992 A JP S58197992A
Authority
JP
Japan
Prior art keywords
circuit
telephone
handset
microphone
speaker
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
JP57080901A
Other languages
English (en)
Japanese (ja)
Other versions
JPH027558B2 (enrdf_load_stackoverflow
Inventor
Masashi Suzuki
正志 鈴木
Nobuo Matoba
的場　信夫
Shinichi Sekiguchi
慎一 関口
Takashi Hayashi
隆 林
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP57080901A priority Critical patent/JPS58197992A/ja
Publication of JPS58197992A publication Critical patent/JPS58197992A/ja
Publication of JPH027558B2 publication Critical patent/JPH027558B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP57080901A 1982-05-13 1982-05-13 ボタン電話装置 Granted JPS58197992A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57080901A JPS58197992A (ja) 1982-05-13 1982-05-13 ボタン電話装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57080901A JPS58197992A (ja) 1982-05-13 1982-05-13 ボタン電話装置

Publications (2)

Publication Number Publication Date
JPS58197992A true JPS58197992A (ja) 1983-11-17
JPH027558B2 JPH027558B2 (enrdf_load_stackoverflow) 1990-02-19

Family

ID=13731265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57080901A Granted JPS58197992A (ja) 1982-05-13 1982-05-13 ボタン電話装置

Country Status (1)

Country Link
JP (1) JPS58197992A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH027558B2 (enrdf_load_stackoverflow) 1990-02-19

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