DE69124217D1 - Verteilte Telefonkonferenz-Kontrolleinrichtung - Google Patents

Verteilte Telefonkonferenz-Kontrolleinrichtung

Info

Publication number
DE69124217D1
DE69124217D1 DE69124217T DE69124217T DE69124217D1 DE 69124217 D1 DE69124217 D1 DE 69124217D1 DE 69124217 T DE69124217 T DE 69124217T DE 69124217 T DE69124217 T DE 69124217T DE 69124217 D1 DE69124217 D1 DE 69124217D1
Authority
DE
Germany
Prior art keywords
call control
conference call
control facility
distributed conference
distributed
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 - Lifetime
Application number
DE69124217T
Other languages
English (en)
Other versions
DE69124217T2 (de
Inventor
Mihoji Tsumura
Masato Hata
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.)
Ricos Co Ltd
Original Assignee
Ricos Co Ltd
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 Ricos Co Ltd filed Critical Ricos Co Ltd
Publication of DE69124217D1 publication Critical patent/DE69124217D1/de
Application granted granted Critical
Publication of DE69124217T2 publication Critical patent/DE69124217T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/562—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities where the conference facilities are distributed
    • 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
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
DE69124217T 1990-12-21 1991-08-09 Verteilte Telefonkonferenz-Kontrolleinrichtung Expired - Lifetime DE69124217T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2413110A JP2725218B2 (ja) 1990-12-21 1990-12-21 分散型電話会議制御装置

Publications (2)

Publication Number Publication Date
DE69124217D1 true DE69124217D1 (de) 1997-02-27
DE69124217T2 DE69124217T2 (de) 1997-04-30

Family

ID=18521808

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69124217T Expired - Lifetime DE69124217T2 (de) 1990-12-21 1991-08-09 Verteilte Telefonkonferenz-Kontrolleinrichtung

Country Status (4)

Country Link
US (1) US5291548A (de)
EP (1) EP0492049B1 (de)
JP (1) JP2725218B2 (de)
DE (1) DE69124217T2 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5463684A (en) * 1993-11-03 1995-10-31 Microlog Corporation Telecommunications system for transferring calls without a private branch exchange
US5719928A (en) * 1995-05-12 1998-02-17 Protel, Inc. Apparatus and method for automated audio teleconferencing having enhanced billing and reservation features
WO1996036157A1 (en) * 1995-05-12 1996-11-14 Protel, Inc. Automated audio teleconferencing having reconfiguration features
US5828743A (en) * 1995-05-12 1998-10-27 Protel, Inc. Apparatus and method for automated audio teleconferencing having enhanced access and security features
SE9502687D0 (sv) * 1995-07-24 1995-07-24 Sandvik Ab CVD coated titanium based carbonitride cutting tool insert
ES2131029B1 (es) * 1997-11-27 2000-03-01 Garcia Jon Urresti Sistema de monitorizacion remota de lineas telefonicas.
US6895086B2 (en) * 2001-11-13 2005-05-17 Inmate Telephone, Inc. 3-Way call detection system and method
AU2004303075B2 (en) * 2003-08-05 2009-06-25 Dsi-Iti, Llc Three-way call detection using steganography
US7760865B2 (en) * 2006-11-17 2010-07-20 Microsoft Corporation Escalation from a conversation to a conference
US8542802B2 (en) 2007-02-15 2013-09-24 Global Tel*Link Corporation System and method for three-way call detection
US20080201158A1 (en) * 2007-02-15 2008-08-21 Johnson Mark D System and method for visitation management in a controlled-access environment
US8630726B2 (en) * 2009-02-12 2014-01-14 Value-Added Communications, Inc. System and method for detecting three-way call circumvention attempts
US9225838B2 (en) 2009-02-12 2015-12-29 Value-Added Communications, Inc. System and method for detecting three-way call circumvention attempts
US10572961B2 (en) 2016-03-15 2020-02-25 Global Tel*Link Corporation Detection and prevention of inmate to inmate message relay
US9609121B1 (en) 2016-04-07 2017-03-28 Global Tel*Link Corporation System and method for third party monitoring of voice and video calls
US10027797B1 (en) 2017-05-10 2018-07-17 Global Tel*Link Corporation Alarm control for inmate call monitoring
US10225396B2 (en) 2017-05-18 2019-03-05 Global Tel*Link Corporation Third party monitoring of a activity within a monitoring platform
US10860786B2 (en) 2017-06-01 2020-12-08 Global Tel*Link Corporation System and method for analyzing and investigating communication data from a controlled environment
US9930088B1 (en) 2017-06-22 2018-03-27 Global Tel*Link Corporation Utilizing VoIP codec negotiation during a controlled environment call

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475189A (en) * 1982-05-27 1984-10-02 At&T Bell Laboratories Automatic interactive conference arrangement
US4479195A (en) * 1982-09-07 1984-10-23 At&T Bell Laboratories Data conference system
JPS6019348A (ja) * 1983-07-13 1985-01-31 Toshiba Corp ボタン電話装置における会議形成方式
US4535454A (en) * 1983-09-15 1985-08-13 At&T Information Systems Inc. Multifrequency tone distribution using a conferencing arrangement
US4757496A (en) * 1984-07-09 1988-07-12 Bard Technologies Distributed telephone system
DE3706128C1 (de) * 1987-02-23 1988-08-18 Deutsche Telephonwerk Kabel Verfahren fuer Konferenzverbindungen in rechnergesteuerten digitalen Fernsprechvermittlungsanlagen
US5113431A (en) * 1989-10-31 1992-05-12 At&T Bell Laboratories Distributed control teleconferencing voice bridge

Also Published As

Publication number Publication date
JP2725218B2 (ja) 1998-03-11
DE69124217T2 (de) 1997-04-30
EP0492049A3 (de) 1994-02-23
EP0492049A2 (de) 1992-07-01
JPH04222148A (ja) 1992-08-12
EP0492049B1 (de) 1997-01-15
US5291548A (en) 1994-03-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition