JPS6139797B2 - - Google Patents
Info
- Publication number
- JPS6139797B2 JPS6139797B2 JP15703078A JP15703078A JPS6139797B2 JP S6139797 B2 JPS6139797 B2 JP S6139797B2 JP 15703078 A JP15703078 A JP 15703078A JP 15703078 A JP15703078 A JP 15703078A JP S6139797 B2 JPS6139797 B2 JP S6139797B2
- Authority
- JP
- Japan
- Prior art keywords
- station
- communication
- terminal
- slave station
- communication 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
- 238000004891 communication Methods 0.000 claims description 65
- 230000004044 response Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 230000004913 activation Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15703078A JPS5582589A (en) | 1978-12-19 | 1978-12-19 | Selection control unit of communication line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15703078A JPS5582589A (en) | 1978-12-19 | 1978-12-19 | Selection control unit of communication line |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5582589A JPS5582589A (en) | 1980-06-21 |
JPS6139797B2 true JPS6139797B2 (lt) | 1986-09-05 |
Family
ID=15640640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15703078A Granted JPS5582589A (en) | 1978-12-19 | 1978-12-19 | Selection control unit of communication line |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5582589A (lt) |
-
1978
- 1978-12-19 JP JP15703078A patent/JPS5582589A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5582589A (en) | 1980-06-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5966432A (en) | Remote answering of doorbell | |
JPS58215163A (ja) | 専用回線の音声・フアクシミリ自動切換装置 | |
JP2637087B2 (ja) | 電話システム | |
JPS6139797B2 (lt) | ||
JP2971627B2 (ja) | 自動通報システム | |
US3761630A (en) | Unidirectional communication system for two-way communications | |
JP3354966B2 (ja) | 電話機システム | |
JPS5924595B2 (ja) | 局線保留方式 | |
JPH0122797B2 (lt) | ||
JPS6138108B2 (lt) | ||
JPS6179361A (ja) | 電話回線における通信方式 | |
JP3064096B2 (ja) | コードレス電話機の呼び出し信号制御方法 | |
JPS5945596B2 (ja) | エレベ−タ非常通報通話装置 | |
JPH0771160B2 (ja) | 電話交換装置 | |
JPH01261066A (ja) | ボタン電話装置 | |
GB2193061A (en) | Emergency call acceptor | |
JPS633545A (ja) | 保留機能付電話機 | |
JPS6291063A (ja) | 自動接続切換装置 | |
JPS59158195A (ja) | ボタン電話装置 | |
JPS6350918B2 (lt) | ||
JPS631231A (ja) | ドアホン装置 | |
JPH05145643A (ja) | 電話装置 | |
JPH04179352A (ja) | コードレス電話機 | |
JPH03158057A (ja) | 電話装置 | |
JPH05252273A (ja) | Diサービス機能付留守番電話装置 |