DK307685A - Digitalt telefonapparat - Google Patents
Digitalt telefonapparat Download PDFInfo
- Publication number
- DK307685A DK307685A DK307685A DK307685A DK307685A DK 307685 A DK307685 A DK 307685A DK 307685 A DK307685 A DK 307685A DK 307685 A DK307685 A DK 307685A DK 307685 A DK307685 A DK 307685A
- Authority
- DK
- Denmark
- Prior art keywords
- phone device
- digital phone
- digital
- phone
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Telephone Function (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/628,102 US4575584A (en) | 1984-07-05 | 1984-07-05 | Fail-safe digital phone |
Publications (2)
Publication Number | Publication Date |
---|---|
DK307685D0 DK307685D0 (da) | 1985-07-04 |
DK307685A true DK307685A (da) | 1986-01-06 |
Family
ID=24517477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK307685A DK307685A (da) | 1984-07-05 | 1985-07-04 | Digitalt telefonapparat |
Country Status (5)
Country | Link |
---|---|
US (1) | US4575584A (da) |
EP (1) | EP0170423A1 (da) |
AU (1) | AU570893B2 (da) |
CA (1) | CA1232661A (da) |
DK (1) | DK307685A (da) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3633057C2 (de) * | 1986-09-29 | 1994-01-20 | Kommunikations Elektronik | Schaltungsanordnung zur Übertragung nachrichtentechnischer Signale |
SU1547671A1 (ru) * | 1988-07-20 | 1991-09-07 | Предприятие П/Я Р-6609 | Цифрова коммутационна система |
US5142571A (en) * | 1988-10-19 | 1992-08-25 | Fujitsu Limited | Digital telephone set having an emergency switching function and communication system having the same |
JP2920942B2 (ja) * | 1989-07-20 | 1999-07-19 | 富士通株式会社 | テレビ電話機 |
US4972452A (en) * | 1989-11-09 | 1990-11-20 | Aspect Telecommunications Corporation | Digital bypass for telephone system |
US5214692A (en) * | 1989-11-13 | 1993-05-25 | Aspect Telecommunications Corporation | Bypass for telephone switching system |
DE69131239T2 (de) * | 1990-02-22 | 2000-02-24 | Canon K.K., Tokio/Tokyo | Nebenstellenanlagesystem |
JPH0736589B2 (ja) * | 1990-10-24 | 1995-04-19 | 富士ゼロックス株式会社 | ファクシミリ装置 |
JP2744357B2 (ja) * | 1991-04-23 | 1998-04-28 | キヤノン株式会社 | 構内交換装置 |
US5299256A (en) * | 1991-05-17 | 1994-03-29 | Kabushiki Kaisha Toshiba | PBX telephone with message printer |
US5216704A (en) * | 1991-06-12 | 1993-06-01 | Coherent Communications Systems Corp. | Method for remote power fail detection and maintaining continuous operation for data and voice devices operating over local loops |
US5627827A (en) * | 1994-02-04 | 1997-05-06 | Omnilink Corporation | Automatic service cutover for ISDN private exchange |
GB9406212D0 (en) * | 1994-03-29 | 1994-05-18 | Plessey Telecomm | Telecommunication customer interface |
EP0680188A2 (en) * | 1994-04-28 | 1995-11-02 | Uniden America Corporation | Cordless telephone adapted for use with a corded digital telephone |
KR0165201B1 (ko) * | 1995-11-08 | 1999-02-01 | 김광호 | 키폰시스템에서 정전시 대피 국선 복귀회로 및 방법 |
US5875234A (en) | 1996-02-14 | 1999-02-23 | Netphone, Inc. | Computer integrated PBX system |
JP3092053B2 (ja) * | 1996-05-28 | 2000-09-25 | 松下電器産業株式会社 | 電話機における記録再生装置 |
US5905795A (en) * | 1997-04-25 | 1999-05-18 | Alcatel Usa Sourcing, L.P. | Two-line subscriber system |
US6327242B1 (en) * | 1998-03-17 | 2001-12-04 | Infolibria, Inc. | Message redirector with cut-through switch for highly reliable and efficient network traffic processor deployment |
US6584197B1 (en) * | 1998-12-03 | 2003-06-24 | Adtran Inc. | Power-limited remote termination converter with wetting current and emergency power operation for digital data transmission equipment |
US6400803B1 (en) * | 1999-08-17 | 2002-06-04 | Nortel Networks Limited | Voice over digital subscriber line call redirection for lifeline service |
US6700970B1 (en) | 2000-07-17 | 2004-03-02 | Aox Incorporated | LAN phone system with automatic fallback for power or network failure |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1437031A (en) * | 1973-04-04 | 1976-05-26 | Plessey Co Ltd | House exchange telephone system |
GB1595301A (en) * | 1976-12-10 | 1981-08-12 | Plessey Canada | Electronic telephone system |
US4100375A (en) * | 1977-01-19 | 1978-07-11 | David Lewis Noller | Telephone, intercom and remote control system |
DE2828583B2 (de) * | 1978-06-29 | 1980-04-17 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Teilnehmerstation |
DE3221387A1 (de) * | 1982-06-05 | 1983-12-08 | Krone Gmbh, 1000 Berlin | Digitales fernsprechendgeraet mit anschluessen fuer analoge zusatzgeraete |
FR2530104B1 (fr) * | 1982-07-12 | 1986-10-24 | Constr Telephoniques | Circuit de couplage de ligne additionnelle a un poste d'intercommunication |
-
1984
- 1984-07-05 US US06/628,102 patent/US4575584A/en not_active Expired - Lifetime
-
1985
- 1985-06-17 CA CA000484255A patent/CA1232661A/en not_active Expired
- 1985-06-24 AU AU43997/85A patent/AU570893B2/en not_active Ceased
- 1985-07-02 EP EP85304700A patent/EP0170423A1/en not_active Ceased
- 1985-07-04 DK DK307685A patent/DK307685A/da not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0170423A1 (en) | 1986-02-05 |
AU4399785A (en) | 1986-01-09 |
DK307685D0 (da) | 1985-07-04 |
CA1232661A (en) | 1988-02-09 |
AU570893B2 (en) | 1988-03-24 |
US4575584A (en) | 1986-03-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AHB | Application shelved due to non-payment |