ES474719A1 - Perfeccionamientos en dispositivos de cobertura de llamadas para utilizarse en sistemas de comunicaciones. - Google Patents

Perfeccionamientos en dispositivos de cobertura de llamadas para utilizarse en sistemas de comunicaciones.

Info

Publication number
ES474719A1
ES474719A1 ES474719A ES474719A ES474719A1 ES 474719 A1 ES474719 A1 ES 474719A1 ES 474719 A ES474719 A ES 474719A ES 474719 A ES474719 A ES 474719A ES 474719 A1 ES474719 A1 ES 474719A1
Authority
ES
Spain
Prior art keywords
station
call
coverage
communication system
signals
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
Application number
ES474719A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of ES474719A1 publication Critical patent/ES474719A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04M3/54—Arrangements for diverting calls for one subscriber to another predetermined subscriber
    • H04M3/546—Arrangements for diverting calls for one subscriber to another predetermined subscriber in private branch exchanges
    • 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
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
    • H04M9/007—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line wherein the key telephone sets are star-connected to a central unit by a limited number of lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Perfeccionamientos en dispositivos de cobertura de llamadas para utilizarse en sistemas de comunicaciones que tienen una pluralidad de estaciones cada una con capacidad de comunicación con otras estaciones por enlaces de comunicación internos al sistema, teniendo cada una de las estaciones una pluralidad de botones inestables que actúan para establecer características o conexiones de comunicación con dicha estación, caracterizados porque cada dispositivo de cobertura de llamadas comprende una red de conmutación que tiene una pluralidad de enlaces y una sola conexión de comunicación con extensión hasta cada estación desde la red de conmutación, estando la conexión bajo control de las operaciones momentáneas de los botones medios para organizar en algunas de las estaciones por lo menos uno de los botones como botón de cobertura de llamada, funcionando el botón de cobertura de llamadas para establecer una conexión de comunicación en respuesta a las llamadas dirigidas al mismo; y medios para dirigir llamadas entrantes en una primera estación en cualquier línea que aparezca en dicha primera estación, al botón de cobertura de llamadas por lo menos en otra de las estaciones.
ES474719A 1977-10-31 1978-10-31 Perfeccionamientos en dispositivos de cobertura de llamadas para utilizarse en sistemas de comunicaciones. Expired ES474719A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/847,217 US4150257A (en) 1977-10-31 1977-10-31 Communication system call coverage arrangements

Publications (1)

Publication Number Publication Date
ES474719A1 true ES474719A1 (es) 1979-04-01

Family

ID=25300095

Family Applications (1)

Application Number Title Priority Date Filing Date
ES474719A Expired ES474719A1 (es) 1977-10-31 1978-10-31 Perfeccionamientos en dispositivos de cobertura de llamadas para utilizarse en sistemas de comunicaciones.

Country Status (15)

Country Link
US (1) US4150257A (es)
JP (1) JPS6410150B2 (es)
BE (1) BE871658A (es)
CA (1) CA1090908A (es)
CH (1) CH648973A5 (es)
DE (1) DE2857138C1 (es)
ES (1) ES474719A1 (es)
FR (1) FR2407623A1 (es)
GB (1) GB2023967B (es)
HK (1) HK40584A (es)
IL (1) IL55799A (es)
IT (1) IT1099861B (es)
NL (1) NL189741C (es)
SE (1) SE427789B (es)
WO (1) WO1979000250A1 (es)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4278844A (en) * 1979-03-26 1981-07-14 Bell Telephone Laboratories, Incorporated Communication system selective call screening arrangement
US4296282A (en) * 1980-06-30 1981-10-20 Bell Telephone Laboratories, Incorporated Incoming call identification arrangement
US4436962A (en) * 1982-03-30 1984-03-13 Bell Telephone Laboratories, Incorporated Call coverage arrangement
US4451705A (en) * 1982-05-28 1984-05-29 Bell Telephone Laboratories, Incorporated Call completion circuit and method
US4539437A (en) * 1982-11-30 1985-09-03 At&T Bell Laboratories Stored program power control system for improving energy efficiency for telephone sets connected into a local telephone communications system
US4631364A (en) * 1984-02-23 1986-12-23 At&T Information Systems Inc. Communication system having dynamically assigned station set buttons
EP0195635B1 (en) * 1985-03-20 1993-05-26 Nec Corporation Key telephone system
NL8601982A (nl) * 1986-08-04 1988-03-01 Philips Nv Digitaal telecommunicatiestelsel met een centrale en een groep van terminals met multi-access.
DE3634782C1 (en) * 1986-10-11 1988-08-18 Telefonbau & Normalzeit Gmbh Operator's or enquiry station for a telephone switching system, particularly a multiple broker's facility
DE3720186C2 (de) * 1987-06-16 1994-07-21 Siemens Ag Verfahren für eine rechnergesteuerte Vermittlungseinrichtung, insbesondere für eine sogenannte KEY-Fernsprechvermittlungseinrichtung
ATE103447T1 (de) * 1987-06-16 1994-04-15 Siemens Ag Verfahren fuer eine rechnergesteuerte vermittlungseinrichtung, insbesondere fuer eine sogenannte key-fernsprechvermittlungseinrichtung mit der moeglichkeit der rufweiterleitung.
FR2620887B1 (fr) * 1987-09-18 1990-01-19 Applic Electro Tech Avance Installation telephonique a liaison hertzienne
ATE102415T1 (de) * 1988-09-27 1994-03-15 Siemens Ag Verfahren zur uebernahme von anrufen.
DE3862582D1 (de) * 1988-09-28 1991-05-29 Siemens Ag Verfahren zum heranziehen von anrufen, die von einer kommunikationsanlage an ein oder mehrere reihenanlagen-kommunikationsendgeraete signalisiert werden.
US4879743A (en) * 1988-10-03 1989-11-07 American Telephone And Telegraph Company PBX and adjunct using multi-frequency tones for communication therebetween
ES2048046B1 (es) * 1991-08-30 1996-08-01 Telefonica Nacional Espana Co Equipo adaptador para extension distante de centralita privada de abonado
US5309028A (en) * 1992-07-14 1994-05-03 At&T Bell Laboratories Call coverage arrangement in an ISDN switching system
US5530931A (en) * 1994-10-20 1996-06-25 Telefonaktiebolaget L M Ericsson Method and apparatus for providing a look ahead feature for enhanced call forwarding in a telecommunications system
US5521970A (en) * 1995-03-29 1996-05-28 At&T Corp. Arrangement for extending call-coverage across a network of nodes
US5790173A (en) * 1995-07-20 1998-08-04 Bell Atlantic Network Services, Inc. Advanced intelligent network having digital entertainment terminal or the like interacting with integrated service control point
US5867568A (en) * 1996-08-22 1999-02-02 Lucent Technologies Inc. Coverage of redirected calls
US6359977B1 (en) * 1999-05-06 2002-03-19 Thomson Licensing S.A. Telephone port with automatic detection and secure
US8503640B1 (en) 2004-09-01 2013-08-06 Shoretel, Inc. Extension monitoring in a distributed telephony system
US8879707B2 (en) * 2005-01-14 2014-11-04 Avaya Inc. Private branch exchange that manages interactions between associated telecommunications terminals

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1762398B1 (de) * 1968-06-10 1970-04-23 Siemens Ag Anordnung und Verfahren zur gegenseitigen UEbernahme von Anrufen
US3626109A (en) * 1969-11-26 1971-12-07 Stromberg Carlson Corp Call-forwarding process
BE790108A (fr) * 1971-10-15 1973-02-01 Western Electric Co Reseau de commutation
DE2348233B1 (de) * 1973-09-25 1975-01-09 Siemens Ag Schaltungsanordnung zur Anrufsteuerung in Fernsprech-,insbesondere Linienwaehleranlagen
US4046972A (en) * 1976-10-27 1977-09-06 Bell Telephone Laboratories, Incorporated Key telephone station set circuit

Also Published As

Publication number Publication date
FR2407623B1 (es) 1983-07-18
IT7829243A0 (it) 1978-10-30
IL55799A (en) 1980-12-31
BE871658A (fr) 1979-02-15
NL189741B (nl) 1993-02-01
GB2023967A (en) 1980-01-03
JPS6410150B2 (es) 1989-02-21
CA1090908A (en) 1980-12-02
SE427789B (sv) 1983-05-02
IT1099861B (it) 1985-09-28
HK40584A (en) 1984-05-18
FR2407623A1 (fr) 1979-05-25
WO1979000250A1 (en) 1979-05-17
SE7905299L (sv) 1979-06-15
GB2023967B (en) 1982-08-25
IL55799A0 (en) 1978-12-17
CH648973A5 (de) 1985-04-15
DE2857138C1 (de) 1985-06-20
US4150257A (en) 1979-04-17
NL7810802A (nl) 1979-05-02
JPS54500090A (es) 1979-12-13
NL189741C (nl) 1993-07-01

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19890206