JPS60214146A - 親子電話機 - Google Patents

親子電話機

Info

Publication number
JPS60214146A
JPS60214146A JP59069908A JP6990884A JPS60214146A JP S60214146 A JPS60214146 A JP S60214146A JP 59069908 A JP59069908 A JP 59069908A JP 6990884 A JP6990884 A JP 6990884A JP S60214146 A JPS60214146 A JP S60214146A
Authority
JP
Japan
Prior art keywords
telephone
line
call
parent
child
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
JP59069908A
Other languages
English (en)
Japanese (ja)
Other versions
JPH029496B2 (OSRAM
Inventor
Yoshiki Tanimoto
谷本　佳己
Minoru Sasai
笹井　実
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
Kanda Tsushin Kogyo Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Kanda Tsushin Kogyo 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 Nippon Telegraph and Telephone Corp, Kanda Tsushin Kogyo Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP59069908A priority Critical patent/JPS60214146A/ja
Publication of JPS60214146A publication Critical patent/JPS60214146A/ja
Publication of JPH029496B2 publication Critical patent/JPH029496B2/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
    • H04M1/715—Substation extension arrangements using two or more extensions per line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP59069908A 1984-04-10 1984-04-10 親子電話機 Granted JPS60214146A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59069908A JPS60214146A (ja) 1984-04-10 1984-04-10 親子電話機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59069908A JPS60214146A (ja) 1984-04-10 1984-04-10 親子電話機

Publications (2)

Publication Number Publication Date
JPS60214146A true JPS60214146A (ja) 1985-10-26
JPH029496B2 JPH029496B2 (OSRAM) 1990-03-02

Family

ID=13416264

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59069908A Granted JPS60214146A (ja) 1984-04-10 1984-04-10 親子電話機

Country Status (1)

Country Link
JP (1) JPS60214146A (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62108648A (ja) * 1985-11-06 1987-05-19 Chuo Seisakusho:Kk 通話切替装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62108648A (ja) * 1985-11-06 1987-05-19 Chuo Seisakusho:Kk 通話切替装置

Also Published As

Publication number Publication date
JPH029496B2 (OSRAM) 1990-03-02

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