JPS5356902A - System for controlling ringing signal of key telephone - Google Patents

System for controlling ringing signal of key telephone

Info

Publication number
JPS5356902A
JPS5356902A JP13046476A JP13046476A JPS5356902A JP S5356902 A JPS5356902 A JP S5356902A JP 13046476 A JP13046476 A JP 13046476A JP 13046476 A JP13046476 A JP 13046476A JP S5356902 A JPS5356902 A JP S5356902A
Authority
JP
Japan
Prior art keywords
key telephone
ringing signal
controlling ringing
controlling
telephone
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
JP13046476A
Other languages
English (en)
Japanese (ja)
Other versions
JPS576740B2 (ref
Inventor
Takahiro Yui
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.)
Kanda Tsushin Kogyo Co Ltd
Original Assignee
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 Kanda Tsushin Kogyo Co Ltd filed Critical Kanda Tsushin Kogyo Co Ltd
Priority to JP13046476A priority Critical patent/JPS5356902A/ja
Publication of JPS5356902A publication Critical patent/JPS5356902A/ja
Publication of JPS576740B2 publication Critical patent/JPS576740B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Devices For Supply Of Signal Current (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP13046476A 1976-11-01 1976-11-01 System for controlling ringing signal of key telephone Granted JPS5356902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13046476A JPS5356902A (en) 1976-11-01 1976-11-01 System for controlling ringing signal of key telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13046476A JPS5356902A (en) 1976-11-01 1976-11-01 System for controlling ringing signal of key telephone

Publications (2)

Publication Number Publication Date
JPS5356902A true JPS5356902A (en) 1978-05-23
JPS576740B2 JPS576740B2 (ref) 1982-02-06

Family

ID=15034853

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13046476A Granted JPS5356902A (en) 1976-11-01 1976-11-01 System for controlling ringing signal of key telephone

Country Status (1)

Country Link
JP (1) JPS5356902A (ref)

Also Published As

Publication number Publication date
JPS576740B2 (ref) 1982-02-06

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