JPS5862956A - ボタン電話機の着信音送出回路 - Google Patents

ボタン電話機の着信音送出回路

Info

Publication number
JPS5862956A
JPS5862956A JP16175281A JP16175281A JPS5862956A JP S5862956 A JPS5862956 A JP S5862956A JP 16175281 A JP16175281 A JP 16175281A JP 16175281 A JP16175281 A JP 16175281A JP S5862956 A JPS5862956 A JP S5862956A
Authority
JP
Japan
Prior art keywords
circuit
channel
incoming
incoming tone
call
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
JP16175281A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6354278B2 (enrdf_load_stackoverflow
Inventor
Teruyuki Kubo
久保　輝幸
Yuichi Yamazaki
山崎　悠一
Kenichi Ishii
賢一 石井
Tsuneji Kimeda
木目田　常治
Shinichi Mori
森　真一
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
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP16175281A priority Critical patent/JPS5862956A/ja
Publication of JPS5862956A publication Critical patent/JPS5862956A/ja
Publication of JPS6354278B2 publication Critical patent/JPS6354278B2/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
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP16175281A 1981-10-09 1981-10-09 ボタン電話機の着信音送出回路 Granted JPS5862956A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16175281A JPS5862956A (ja) 1981-10-09 1981-10-09 ボタン電話機の着信音送出回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16175281A JPS5862956A (ja) 1981-10-09 1981-10-09 ボタン電話機の着信音送出回路

Publications (2)

Publication Number Publication Date
JPS5862956A true JPS5862956A (ja) 1983-04-14
JPS6354278B2 JPS6354278B2 (enrdf_load_stackoverflow) 1988-10-27

Family

ID=15741209

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16175281A Granted JPS5862956A (ja) 1981-10-09 1981-10-09 ボタン電話機の着信音送出回路

Country Status (1)

Country Link
JP (1) JPS5862956A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8594316B2 (en) 2005-08-29 2013-11-26 Nec Infrontia Corporation Voice call system adapted to support a computer terminal and that adjusts a ringer tone

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49106704A (enrdf_load_stackoverflow) * 1973-02-10 1974-10-09
JPS5435604A (en) * 1977-08-25 1979-03-15 Toshiba Corp Ringing system of push-button telephone set
JPS5611555U (enrdf_load_stackoverflow) * 1979-07-06 1981-01-31

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49106704A (enrdf_load_stackoverflow) * 1973-02-10 1974-10-09
JPS5435604A (en) * 1977-08-25 1979-03-15 Toshiba Corp Ringing system of push-button telephone set
JPS5611555U (enrdf_load_stackoverflow) * 1979-07-06 1981-01-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8594316B2 (en) 2005-08-29 2013-11-26 Nec Infrontia Corporation Voice call system adapted to support a computer terminal and that adjusts a ringer tone

Also Published As

Publication number Publication date
JPS6354278B2 (enrdf_load_stackoverflow) 1988-10-27

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