NO307729B1 - Tastestyrt høyttalende telefonanlegg med linjevalg - Google Patents

Tastestyrt høyttalende telefonanlegg med linjevalg

Info

Publication number
NO307729B1
NO307729B1 NO920905A NO920905A NO307729B1 NO 307729 B1 NO307729 B1 NO 307729B1 NO 920905 A NO920905 A NO 920905A NO 920905 A NO920905 A NO 920905A NO 307729 B1 NO307729 B1 NO 307729B1
Authority
NO
Norway
Prior art keywords
central station
signals
busy
subscriber devices
line selection
Prior art date
Application number
NO920905A
Other languages
English (en)
Other versions
NO920905D0 (no
NO920905L (no
Inventor
Friedrich Schulte
Martin Kemmerling
Original Assignee
Neumann Elektronik Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Neumann Elektronik Gmbh filed Critical Neumann Elektronik Gmbh
Publication of NO920905D0 publication Critical patent/NO920905D0/no
Publication of NO920905L publication Critical patent/NO920905L/no
Publication of NO307729B1 publication Critical patent/NO307729B1/no

Links

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
    • H04M9/008—Multiplex systems
    • 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
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Telephonic Communication Services (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Telephone Set Structure (AREA)
NO920905A 1991-03-09 1992-03-06 Tastestyrt høyttalende telefonanlegg med linjevalg NO307729B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4107591A DE4107591C1 (no) 1991-03-09 1991-03-09

Publications (3)

Publication Number Publication Date
NO920905D0 NO920905D0 (no) 1992-03-06
NO920905L NO920905L (no) 1992-09-10
NO307729B1 true NO307729B1 (no) 2000-05-15

Family

ID=6426863

Family Applications (1)

Application Number Title Priority Date Filing Date
NO920905A NO307729B1 (no) 1991-03-09 1992-03-06 Tastestyrt høyttalende telefonanlegg med linjevalg

Country Status (5)

Country Link
EP (1) EP0503412B1 (no)
AT (1) ATE175830T1 (no)
DE (2) DE4107591C1 (no)
ES (1) ES2127733T3 (no)
NO (1) NO307729B1 (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19523980C1 (de) * 1995-06-30 1997-01-02 Nca Mikroelektronic Gmbh Verfahren zur Überwachung von Objekten über eine Datenfernübertragungsleitung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2837950C2 (de) * 1978-08-31 1986-11-13 Neumann Elektronik GmbH, 4330 Mülheim Vermittlungseinrichtung für eine tastengesteuerte Wechsel-, Gegen- oder Lautsprechanlage
DE3000858C2 (de) * 1980-01-11 1986-11-13 Neumann Elektronik GmbH, 4330 Mülheim Tastengesteuerte Wechsel-, Gegen- oder Lautsprechanlage
DE3214656C2 (de) * 1982-04-21 1985-02-14 ANT Nachrichtentechnik GmbH, 7150 Backnang Steuereinrichtung für eine Sprechanlage
JPS6482794A (en) * 1987-09-24 1989-03-28 Nec Corp Digital key telephone set
US4850011A (en) * 1988-01-13 1989-07-18 Redcom Laboratories, Inc. Key telephone system providing selection of key or PBX operational modes
US4873717A (en) * 1988-06-14 1989-10-10 American Telephone And Telegraph Company, At&T Bell Laboratories Call coverage arrangement
DE59007574D1 (de) * 1990-08-23 1994-12-01 Siemens Ag Digitale Fernsprecheinrichtung.

Also Published As

Publication number Publication date
DE59209612D1 (de) 1999-02-25
DE4107591C1 (no) 1992-03-05
EP0503412A2 (de) 1992-09-16
EP0503412A3 (en) 1995-07-19
NO920905D0 (no) 1992-03-06
NO920905L (no) 1992-09-10
EP0503412B1 (de) 1999-01-13
ATE175830T1 (de) 1999-01-15
ES2127733T3 (es) 1999-05-01

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Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees