NO830507L - Gaffel-impulssignalbetjent telefonstyreanordning. - Google Patents

Gaffel-impulssignalbetjent telefonstyreanordning.

Info

Publication number
NO830507L
NO830507L NO830507A NO830507A NO830507L NO 830507 L NO830507 L NO 830507L NO 830507 A NO830507 A NO 830507A NO 830507 A NO830507 A NO 830507A NO 830507 L NO830507 L NO 830507L
Authority
NO
Norway
Prior art keywords
fork
telephone
signal
control
time
Prior art date
Application number
NO830507A
Other languages
English (en)
Norwegian (no)
Inventor
Jeffrey D Stein
John Mccool
Original Assignee
Gti Corp
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 Gti Corp filed Critical Gti Corp
Publication of NO830507L publication Critical patent/NO830507L/no

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
    • H04M3/428—Arrangements for placing incoming calls on hold
    • H04M3/4283—Call holding circuits
    • 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
    • H04M1/53—Generation of additional signals, e.g. additional pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Telephone Function (AREA)
  • Telephone Set Structure (AREA)
  • Coin-Freed Apparatuses For Hiring Articles (AREA)
  • Selective Calling Equipment (AREA)
NO830507A 1981-06-15 1983-02-15 Gaffel-impulssignalbetjent telefonstyreanordning. NO830507L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/273,807 US4387274A (en) 1981-06-15 1981-06-15 Hook flash signal actuated telephone control device

Publications (1)

Publication Number Publication Date
NO830507L true NO830507L (no) 1983-02-15

Family

ID=23045486

Family Applications (1)

Application Number Title Priority Date Filing Date
NO830507A NO830507L (no) 1981-06-15 1983-02-15 Gaffel-impulssignalbetjent telefonstyreanordning.

Country Status (9)

Country Link
US (1) US4387274A (de)
EP (1) EP0067268A3 (de)
JP (1) JPS58500964A (de)
AR (1) AR229693A1 (de)
BR (1) BR8109032A (de)
CA (1) CA1182231A (de)
DK (1) DK47483D0 (de)
NO (1) NO830507L (de)
WO (1) WO1982004516A1 (de)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492822A (en) * 1982-09-30 1985-01-08 Alderman Robert J Telephone hold circuit with improved self-limiting amplifier for injecting an audio signal during hold conditions
US4435622A (en) 1982-11-01 1984-03-06 Gte Automatic Electric Inc. Latching relay hold circuit for a telephone instrument
US4454385A (en) * 1982-11-01 1984-06-12 Gte Automatic Electric Inc. Latching relay hold release circuit for a telephone instrument
US4440981A (en) * 1982-11-26 1984-04-03 Gte Automatic Electric Inc. Electronic hold circuit
US4447674A (en) * 1982-11-26 1984-05-08 Gte Automatic Electric Inc. Electronic hold release circuit
US4492823A (en) * 1983-05-02 1985-01-08 Gte Business Communication Systems Dual timing circuit for telephone subscriber's instrument
AU4221785A (en) * 1984-05-10 1985-11-14 Nitsuko Ltd. Office line holding circuit
US4638124A (en) * 1984-09-21 1987-01-20 Itt Corporation Key telephone system with distributed control
US4674118A (en) * 1985-03-25 1987-06-16 Tie/Communications, Inc. Telephone line hold and hold release apparatus
WO1988000418A1 (en) * 1986-06-30 1988-01-14 Anthony Forbes Telephone on-hold device
DE3725329A1 (de) * 1987-07-30 1989-02-09 Siemens Ag Schaltungsanordnung fuer eine digitale fernsprechstation
DE58909281D1 (de) * 1988-08-18 1995-07-13 Siemens Ag Verfahren zur Durchführung einer Steuerprozedur im Zusammmenhang mit der Herbeiführung eines Haltezustandes einer Leitung in einem rechnergesteuerten Kommunikationssystem insbesondere einem Key-Kommunikationssystem.
JPH03162160A (ja) * 1989-11-21 1991-07-12 Nippon Telegr & Teleph Corp <Ntt> フッキングパルス検出装置
FR2664773A1 (fr) * 1990-07-11 1992-01-17 Sebty Sarl Dispositif pour conserver une communication telephonique etablie tout en raccrochant le combine du poste en service.
US5539812A (en) * 1992-07-29 1996-07-23 Kitchin; Dwight W. Method and apparatus for detecting an attempted three-way conference call on a remote telephone
EP0603436B1 (de) * 1992-12-21 1999-03-03 STMicroelectronics Pte Ltd. Schaltung zur Detektion eines Parallelfernsprechgerät
DE4334288A1 (de) * 1993-10-08 1995-04-13 Deutsche Bundespost Telekom Schutzvorrichtung gegen irrtümliches Unterlassen des Ausschaltens eines Ein/Aus-Schalters bei Fernsprechapparaten
DE4427600A1 (de) * 1994-08-04 1996-03-07 Deutsche Telekom Ag Verfahren zum Auslösen einer Identifizierung des Anschlusses eines rufenden Teilnehmers
US5768355A (en) * 1996-05-16 1998-06-16 Science Dynamics Corporation Three-way call detection system
US5832075A (en) * 1996-09-20 1998-11-03 Mitel Corporation Off-hook detector for headset
US6351525B1 (en) 1998-09-22 2002-02-26 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for conservation of switching exchange resources
US6947546B2 (en) * 2000-09-26 2005-09-20 Ceglia Michael J Hook-flash simulation in parallel with off-hook devices
US7899167B1 (en) 2003-08-15 2011-03-01 Securus Technologies, Inc. Centralized call processing
US7505406B1 (en) 2001-07-13 2009-03-17 Evercom Systems, Inc. Public telephone control with voice over internet protocol transmission
US8000269B1 (en) 2001-07-13 2011-08-16 Securus Technologies, Inc. Call processing with voice over internet protocol transmission
US7916845B2 (en) 2006-04-13 2011-03-29 Securus Technologies, Inc. Unauthorized call activity detection and prevention systems and methods for a Voice over Internet Protocol environment
US7860222B1 (en) 2003-11-24 2010-12-28 Securus Technologies, Inc. Systems and methods for acquiring, accessing, and analyzing investigative information
US9020114B2 (en) 2002-04-29 2015-04-28 Securus Technologies, Inc. Systems and methods for detecting a call anomaly using biometric identification
US9026468B2 (en) 2002-04-29 2015-05-05 Securus Technologies, Inc. System and method for proactively establishing a third-party payment account for services rendered to a resident of a controlled-environment facility
US7529357B1 (en) 2003-08-15 2009-05-05 Evercom Systems, Inc. Inmate management and call processing systems and methods
US10796392B1 (en) 2007-05-22 2020-10-06 Securus Technologies, Llc Systems and methods for facilitating booking, bonding and release

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114801A (en) * 1959-06-15 1963-12-17 Itt Multi-line telephone station
US3551606A (en) * 1968-02-21 1970-12-29 Stephen H Chapman Electronic key telephone
US3629514A (en) * 1970-02-02 1971-12-21 G T E Automatic Electric Lab I Subscriber{40 s holding circuit
US3825693A (en) * 1972-09-25 1974-07-23 Tele Resources Inc Time division multiplex branch exchange
DE2436256A1 (de) * 1974-07-27 1976-02-05 Licentia Gmbh Schaltungsanordnung zur zusaetzlichen zeichengabe
US4011413A (en) * 1976-01-12 1977-03-08 Gimix, Inc. Hold circuit for telephone
DE2651209A1 (de) * 1976-11-10 1978-05-11 Merk Gmbh Telefonbau Fried Schaltungsanordnung zum internruf bei kleinen nebenstellenanlagen mit zwei sprechstellen
US4086440A (en) * 1977-04-12 1978-04-25 Chestel, Inc. Telephone set with loop current interruption timing control
US4090038A (en) * 1977-07-14 1978-05-16 Bell Telephone Laboratories, Incorporated Audio signal on hold circuit
US4196317A (en) * 1978-01-20 1980-04-01 Bartelink E H B Telephone intercom system
US4251693A (en) * 1978-08-03 1981-02-17 Christiansen Gary F Fixed impulse generator for hook switch flash
US4243844A (en) * 1978-09-19 1981-01-06 Waldman Herbert H Hold circuit for telephone system
US4313037A (en) * 1980-06-02 1982-01-26 Rolm Corporation Telephone station set with improved flash signalling
US4311880A (en) * 1980-11-10 1982-01-19 Bell Telephone Laboratories, Incorporated Key telephone hold arrangement

Also Published As

Publication number Publication date
DK47483A (da) 1983-02-04
BR8109032A (pt) 1983-05-31
CA1182231A (en) 1985-02-05
EP0067268A3 (de) 1983-08-10
JPS58500964A (ja) 1983-06-09
DK47483D0 (da) 1983-02-04
EP0067268A2 (de) 1982-12-22
AR229693A1 (es) 1983-10-31
WO1982004516A1 (en) 1982-12-23
US4387274A (en) 1983-06-07

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