DK176293B1 - Gennemvalgskredslöb - Google Patents
Gennemvalgskredslöb Download PDFInfo
- Publication number
- DK176293B1 DK176293B1 DK199300531A DK53193A DK176293B1 DK 176293 B1 DK176293 B1 DK 176293B1 DK 199300531 A DK199300531 A DK 199300531A DK 53193 A DK53193 A DK 53193A DK 176293 B1 DK176293 B1 DK 176293B1
- Authority
- DK
- Denmark
- Prior art keywords
- circuit
- signal
- impedance
- diod
- detecting
- Prior art date
Links
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
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
- H04Q3/627—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/0096—Trunk circuits
-
- 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
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920007883A KR950012585B1 (ko) | 1992-05-09 | 1992-05-09 | 양방향 다이얼링 트렁크 인터페이싱회로 |
KR920007883 | 1992-05-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
DK53193D0 DK53193D0 (da) | 1993-05-06 |
DK53193A DK53193A (da) | 1993-11-10 |
DK176293B1 true DK176293B1 (da) | 2007-06-18 |
Family
ID=19332903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK199300531A DK176293B1 (da) | 1992-05-09 | 1993-05-06 | Gennemvalgskredslöb |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR950012585B1 (nl) |
DE (1) | DE4315243B4 (nl) |
DK (1) | DK176293B1 (nl) |
NL (1) | NL194109C (nl) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19755452A1 (de) * | 1997-12-01 | 1999-06-02 | Elmeg Gmbh & Co Kg Kommunikati | Telekommunikationseinrichtung und Voice-Server |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3748396A (en) * | 1971-04-14 | 1973-07-24 | Itt | Direct inward dialing trunk circuit |
DE3306884A1 (de) * | 1983-02-26 | 1984-08-30 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Signalisierungsdetektor fuer fernsprech-nebenstellenanlagen mit durchwahl |
DE3328206A1 (de) * | 1983-08-04 | 1985-02-21 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung fuer mehrfrequenzempfaenger mit frequenzauswertung von unterbrechungsfrei empfangenen, sich staendig wechselnden frequenzen in fernsprechanlagen |
DE3343646A1 (de) * | 1983-12-02 | 1985-06-13 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Schaltungsanordnung zum erkennen und auswerten von wechselspannungssignalen auf amtsadern |
US4955047A (en) * | 1984-03-26 | 1990-09-04 | Dytel Corporation | Automated attendant with direct inward system access |
US4696028A (en) * | 1984-03-26 | 1987-09-22 | Dytel Corporation | PBX Intercept and caller interactive attendant bypass system |
CA1240088A (en) * | 1985-11-20 | 1988-08-02 | Mitel Corporation | Solid state trunk circuit |
US4914690A (en) * | 1988-03-31 | 1990-04-03 | Nicollet Technologies, Inc. | Universal PBX interface |
DE3822427C2 (de) * | 1988-06-30 | 1997-06-05 | Siemens Ag | Stromsensor für Durchwahl-Amtssätze |
FR2648662B1 (fr) * | 1989-06-19 | 1994-03-18 | Alcatel Business Systems | Joncteur de ligne reseau analogique pour installation telephonique de type prive |
-
1992
- 1992-05-09 KR KR1019920007883A patent/KR950012585B1/ko not_active IP Right Cessation
-
1993
- 1993-05-06 DK DK199300531A patent/DK176293B1/da not_active IP Right Cessation
- 1993-05-07 DE DE4315243A patent/DE4315243B4/de not_active Expired - Fee Related
- 1993-05-10 NL NL9300792A patent/NL194109C/nl not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL9300792A (nl) | 1993-12-01 |
NL194109B (nl) | 2001-02-01 |
DE4315243A1 (de) | 1993-11-11 |
DE4315243B4 (de) | 2006-05-18 |
DK53193D0 (da) | 1993-05-06 |
KR930024387A (ko) | 1993-12-22 |
DK53193A (da) | 1993-11-10 |
NL194109C (nl) | 2001-06-05 |
KR950012585B1 (ko) | 1995-10-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6175695A (ja) | 電話交換システムの特別サ−ビスのためのダイヤル情報および制御情報の検出および変換装置 | |
US4629831A (en) | Series connected interceptor | |
EP0684722B1 (en) | Diverter interface between two telecommunication lines and a subscriber station set | |
US4338495A (en) | Electronic key telephone systems | |
DK176293B1 (da) | Gennemvalgskredslöb | |
US3786194A (en) | Telephone system employing electronic matrix | |
EP0112728B1 (en) | Subscriber telephone system | |
US3752924A (en) | Telephone subscriber line ring-trip detection circuit | |
US5497415A (en) | Automatic release device for automatically releasing the hold-on setting of an outside line call, and transfer method for an outside line call | |
US6480596B1 (en) | Direct inward-outward dialing trunk circuit | |
US4660219A (en) | Extension ringing arrangement key telephone system | |
IE54733B1 (en) | Provate automatic branch exchange | |
US4198547A (en) | Pulse circuit for two wire electronic PABX stations | |
US4641337A (en) | Key telephone system with means for operatively connecting another key telephone systems | |
SU1354439A2 (ru) | Устройство дл автоматической переадресации вызовов | |
KR910003300B1 (ko) | 국선 및 전용선의 공용 인터페이스회로 | |
GB2075798A (en) | Central office interface circuit | |
SU1190536A1 (ru) | Телефонна диктофонна система | |
JPH0767131B2 (ja) | 網制御回路 | |
KR100197516B1 (ko) | 전화기에서의 착신전환 방법 및 회로 | |
NO150020B (no) | Koblingsanordning | |
KR910002624B1 (ko) | 사설 전자교환기에 있어서 국선 신호 검출회로 | |
RU2185035C2 (ru) | Способ установления исходящего соединения и автоматическая телефонная станция, в которой осуществлен этот способ | |
JPH03101557A (ja) | 自動転送サービス方式 | |
JP2531872B2 (ja) | 回線接続試験器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A0 | Application filed | ||
PBP | Patent lapsed |
Country of ref document: DK |