JPH0218640B2 - - Google Patents
Info
- Publication number
- JPH0218640B2 JPH0218640B2 JP17880081A JP17880081A JPH0218640B2 JP H0218640 B2 JPH0218640 B2 JP H0218640B2 JP 17880081 A JP17880081 A JP 17880081A JP 17880081 A JP17880081 A JP 17880081A JP H0218640 B2 JPH0218640 B2 JP H0218640B2
- Authority
- JP
- Japan
- Prior art keywords
- talkback
- microphone
- handset
- switch
- state
- 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
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17880081A JPS5880953A (ja) | 1981-11-06 | 1981-11-06 | ボタン電話装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17880081A JPS5880953A (ja) | 1981-11-06 | 1981-11-06 | ボタン電話装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5880953A JPS5880953A (ja) | 1983-05-16 |
| JPH0218640B2 true JPH0218640B2 (enrdf_load_stackoverflow) | 1990-04-26 |
Family
ID=16054860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17880081A Granted JPS5880953A (ja) | 1981-11-06 | 1981-11-06 | ボタン電話装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5880953A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04185198A (ja) * | 1990-11-20 | 1992-07-02 | Canon Inc | 電話交換装置 |
| JP4717997B2 (ja) * | 2000-10-12 | 2011-07-06 | 株式会社テラモト | ワイパー |
-
1981
- 1981-11-06 JP JP17880081A patent/JPS5880953A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5880953A (ja) | 1983-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4096358A (en) | Key telephone system signal priority arrangement | |
| JPH0218640B2 (enrdf_load_stackoverflow) | ||
| JPS63299415A (ja) | コ−ドレステレホン | |
| US4493950A (en) | Loudspeaker telephone | |
| US5724663A (en) | Car phone connected to a vehicle audio unit having visual indication | |
| US4032724A (en) | Direct station selection circuit | |
| JPS60169262A (ja) | 会議用電話装置 | |
| JP2568669B2 (ja) | 自動ダイヤル装置 | |
| JP2847946B2 (ja) | 自動車用電話装置 | |
| JPS6258761A (ja) | プツシユホン電話機 | |
| JPH0319554A (ja) | ボタン電話装置 | |
| JP2001352391A (ja) | 携帯電話機における通話装置 | |
| JPS6292645A (ja) | 電話機回路 | |
| JPH03112247A (ja) | 家庭用簡易交換システム | |
| JPH07162570A (ja) | ファクシミリ装置 | |
| JPH0329552A (ja) | 電話交換装置 | |
| JPS58151158A (ja) | 打合せ電話回路 | |
| JPH11252262A (ja) | インターホン方式 | |
| JPH088603B2 (ja) | 電話装置 | |
| JPH05110654A (ja) | ボタン型電話機 | |
| JPH0329545A (ja) | 電話装置 | |
| JPH02135966A (ja) | ファクシミリ装置 | |
| JPH0681178B2 (ja) | 自動車電話機 | |
| JPH0129120B2 (enrdf_load_stackoverflow) | ||
| JPH0260349A (ja) | 電話装置 |