JPS585069A - プレスト−ク式ダイヤル電話器 - Google Patents
プレスト−ク式ダイヤル電話器Info
- Publication number
- JPS585069A JPS585069A JP10280081A JP10280081A JPS585069A JP S585069 A JPS585069 A JP S585069A JP 10280081 A JP10280081 A JP 10280081A JP 10280081 A JP10280081 A JP 10280081A JP S585069 A JPS585069 A JP S585069A
- Authority
- JP
- Japan
- Prior art keywords
- dial
- current
- talk
- line
- 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
Links
- 238000010586 diagram Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
- H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10280081A JPS585069A (ja) | 1981-06-30 | 1981-06-30 | プレスト−ク式ダイヤル電話器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10280081A JPS585069A (ja) | 1981-06-30 | 1981-06-30 | プレスト−ク式ダイヤル電話器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS585069A true JPS585069A (ja) | 1983-01-12 |
JPS6226616B2 JPS6226616B2 (enrdf_load_stackoverflow) | 1987-06-10 |
Family
ID=14337144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10280081A Granted JPS585069A (ja) | 1981-06-30 | 1981-06-30 | プレスト−ク式ダイヤル電話器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS585069A (enrdf_load_stackoverflow) |
-
1981
- 1981-06-30 JP JP10280081A patent/JPS585069A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6226616B2 (enrdf_load_stackoverflow) | 1987-06-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE81573T1 (de) | Reprogrammierbare anrufumleitungseinrichtung. | |
US4887294A (en) | Telephone automatic redial system | |
JPH07327074A (ja) | 応答機用補助ベースバンド電話インタフェース | |
US3976847A (en) | Key telephone system intercom arrangement | |
US3187108A (en) | Subscribers' telephone equipment | |
JPS585069A (ja) | プレスト−ク式ダイヤル電話器 | |
JPH06232966A (ja) | 電話機加入者端末のオフフックの検知方法とその装置 | |
US4175216A (en) | Intercom calling apparatus in a key telephone system | |
JPS56156058A (en) | Automatic telephone transfer device | |
KR890004322B1 (ko) | Dtmf식/펄스식 전화기의 내선 통화용 인터페이스 회로 | |
JPS5923665A (ja) | 電子的共通スイツチ | |
JPH0326712Y2 (enrdf_load_stackoverflow) | ||
JPS6130349Y2 (enrdf_load_stackoverflow) | ||
US3885109A (en) | Relay telephone dial pulse register | |
JPH0332139A (ja) | 複数の電話線に接続する電話装置 | |
JPS57131157A (en) | Absence pretending telephone set | |
JPS63135049A (ja) | 電話機 | |
KR930015582A (ko) | 브랜치 전화기의 통화 전환방법 및 장치 | |
SU1061289A2 (ru) | Абонентское устройство квазиэлектронной АТС малой емкости | |
JPS641826Y2 (enrdf_load_stackoverflow) | ||
JPS6316795A (ja) | ボタン電話装置 | |
JPS62276946A (ja) | 呼出音制御装置 | |
JPH01109851A (ja) | 電話機 | |
JPS63212249A (ja) | ダイヤル発信回路 | |
JPS5640354A (en) | Conference telephone connection system |