JPS643263Y2 - - Google Patents
Info
- Publication number
- JPS643263Y2 JPS643263Y2 JP1979178625U JP17862579U JPS643263Y2 JP S643263 Y2 JPS643263 Y2 JP S643263Y2 JP 1979178625 U JP1979178625 U JP 1979178625U JP 17862579 U JP17862579 U JP 17862579U JP S643263 Y2 JPS643263 Y2 JP S643263Y2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- ringing
- line
- call
- main device
- 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.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 description 20
- 238000004804 winding Methods 0.000 description 7
- 230000010355 oscillation Effects 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
Landscapes
- Devices For Supply Of Signal Current (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1979178625U JPS643263Y2 (US20030157376A1-20030821-M00001.png) | 1979-12-25 | 1979-12-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1979178625U JPS643263Y2 (US20030157376A1-20030821-M00001.png) | 1979-12-25 | 1979-12-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5696763U JPS5696763U (US20030157376A1-20030821-M00001.png) | 1981-07-31 |
JPS643263Y2 true JPS643263Y2 (US20030157376A1-20030821-M00001.png) | 1989-01-27 |
Family
ID=29689148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1979178625U Expired JPS643263Y2 (US20030157376A1-20030821-M00001.png) | 1979-12-25 | 1979-12-25 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS643263Y2 (US20030157376A1-20030821-M00001.png) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5221405B2 (ja) * | 2009-01-28 | 2013-06-26 | 沖電気工業株式会社 | 電話制御装置及びそれを備えた電話システム |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5311916B2 (US20030157376A1-20030821-M00001.png) * | 1973-01-23 | 1978-04-25 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5311916U (US20030157376A1-20030821-M00001.png) * | 1976-07-12 | 1978-01-31 |
-
1979
- 1979-12-25 JP JP1979178625U patent/JPS643263Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5311916B2 (US20030157376A1-20030821-M00001.png) * | 1973-01-23 | 1978-04-25 |
Also Published As
Publication number | Publication date |
---|---|
JPS5696763U (US20030157376A1-20030821-M00001.png) | 1981-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS643263Y2 (US20030157376A1-20030821-M00001.png) | ||
JPS62116052A (ja) | 着信選択可能な電話機 | |
JPS63146647A (ja) | 電話付テレビ | |
US4493950A (en) | Loudspeaker telephone | |
US3985976A (en) | Audio frequency signalling systems for telephone systems | |
JPH0126581B2 (US20030157376A1-20030821-M00001.png) | ||
JPH01209849A (ja) | 電話番号音声確認電話機 | |
JPS60149298A (ja) | ボタン電話装置 | |
KR840002418B1 (ko) | 헤드폰 장치 | |
JPH051167Y2 (US20030157376A1-20030821-M00001.png) | ||
JPH0537571Y2 (US20030157376A1-20030821-M00001.png) | ||
JPS6384351A (ja) | ホ−ムテレホンシステム | |
JPH01279658A (ja) | 受信者名指し機能付き電話機 | |
JPS5854713B2 (ja) | ボタン電話装置におけるハンドフリ−応答方式 | |
JPH0346607Y2 (US20030157376A1-20030821-M00001.png) | ||
JPH08191467A (ja) | 構内交換機及び内線電話機 | |
JPH05300244A (ja) | 交換機におけるコールウェイティング装置 | |
JPS60174567A (ja) | 電話機 | |
JPH0783397B2 (ja) | 電話装置 | |
JPS5831068B2 (ja) | ボタンデンワソウチニオケル ツウワホウシキ | |
JPS60136456A (ja) | 多機能電話機 | |
JPS58195354A (ja) | 自動着信転送システム | |
JPS62239753A (ja) | 自動電話システム | |
JPH0279551A (ja) | 電子式交換機 | |
JPS62222746A (ja) | 電話機 |