|
US4670628A
(en)
*
|
1984-04-19 |
1987-06-02 |
Boratgis James P |
Reprogrammable call forwarding device
|
|
US4893335A
(en)
*
|
1984-09-14 |
1990-01-09 |
Fuller Research And Development Company |
Remote access telephone control system
|
|
US5588037A
(en)
|
1984-09-14 |
1996-12-24 |
Accessline Technologies, Inc. |
Remote access telephone control system
|
|
US5752191A
(en)
|
1984-09-14 |
1998-05-12 |
Accessline Technologies, Inc. |
Telephone control system which connects a caller with a subscriber AT A telephone address
|
|
US5375161A
(en)
|
1984-09-14 |
1994-12-20 |
Accessline Technologies, Inc. |
Telephone control system with branch routing
|
|
US6201950B1
(en)
|
1984-09-14 |
2001-03-13 |
Aspect Telecommunications Corporation |
Computer-controlled paging and telephone communication system and method
|
|
US6545589B1
(en)
|
1984-09-14 |
2003-04-08 |
Aspect Communications Corporation |
Method and apparatus for managing telecommunications
|
|
JPS6331342A
(ja)
*
|
1986-07-25 |
1988-02-10 |
Hashimoto Corp |
遠隔操作可能な電話転送先変更装置
|
|
KR910001734B1
(ko)
*
|
1986-10-07 |
1991-03-22 |
상요덴기 가부시기가이샤 |
전화기의 전원 절환 장치
|
|
US4918719A
(en)
*
|
1986-10-08 |
1990-04-17 |
American Telephone And Telegraph Company |
Elimination of false requests for telephone operator assistance
|
|
US4926461A
(en)
*
|
1987-01-12 |
1990-05-15 |
Code-A-Phone Corporation |
Telephone answering machine having call transfer capabilities
|
|
US4813070A
(en)
*
|
1987-11-19 |
1989-03-14 |
Royal Technology, Inc. |
Telephone intercept system
|
|
WO1989006077A1
(en)
*
|
1987-12-24 |
1989-06-29 |
Clark Milas G Junior |
Remotely commanded telephone switch enhancing system
|
|
US4969186A
(en)
*
|
1988-05-12 |
1990-11-06 |
Gte North Incorporated |
Telephone message waiting system and apparatus
|
|
FR2636485A1
(en)
*
|
1988-09-13 |
1990-03-16 |
Assrour Francois |
Single-line telephone call diverter
|
|
JP2542247B2
(ja)
*
|
1988-11-18 |
1996-10-09 |
アンリツ株式会社 |
公衆電話機
|
|
US5062103A
(en)
|
1988-12-29 |
1991-10-29 |
At&T Bell Laboratories |
Telephone agent call management system
|
|
DE68925884T2
(de)
*
|
1988-12-29 |
1996-11-14 |
At & T Corp |
Automatisches Anrufverarbeitungsgerät
|
|
US5062133A
(en)
*
|
1989-07-07 |
1991-10-29 |
Logotronix Incorporated |
Multi-function telephone call management system
|
|
US5392339A
(en)
*
|
1990-10-18 |
1995-02-21 |
Fuji Xerox Co., Ltd. |
Telephone transfer apparatus using a special signal for transfer in facsimile communication
|
|
JP2894371B2
(ja)
*
|
1991-01-09 |
1999-05-24 |
キヤノン株式会社 |
通信装置の制御方法
|
|
US5982870A
(en)
*
|
1992-05-26 |
1999-11-09 |
Bell Atlantic Network Services, Inc. |
Method for concurrently establishing switch redirection for multiple lines of the public telephone network
|
|
US5319702A
(en)
*
|
1992-07-29 |
1994-06-07 |
Tele-Matic Corporation |
Method and apparatus for detecting and responding to hook flash events occurring on a remote telephone
|
|
US6026156A
(en)
|
1994-03-18 |
2000-02-15 |
Aspect Telecommunications Corporation |
Enhanced call waiting
|
|
US5502762A
(en)
*
|
1994-06-10 |
1996-03-26 |
Andrew; Brian J. |
System and method for simultaneously controlling ringing at local and remote telephones
|
|
US5524139A
(en)
*
|
1994-07-15 |
1996-06-04 |
Boston Technology, Inc. |
System for automatic access to automated telephonic information services
|
|
IL111634A0
(en)
|
1994-11-14 |
1995-01-24 |
Mohr Asaf |
Computerized telephone apparatus
|
|
KR0155635B1
(ko)
*
|
1995-05-25 |
1998-11-16 |
김광호 |
3인통화 서비스가 가입된 자동 응답 전화기에서 착신신호를 외출지로 자동연결하는 방법
|
|
KR0177098B1
(ko)
*
|
1995-06-12 |
1999-05-15 |
김광호 |
사설교환장치에서 디자 라인을 이용한 알람 콜 방법
|
|
US6411682B1
(en)
|
1995-09-21 |
2002-06-25 |
Aspect Telecommunications Corporation |
Computer controlled paging and telephone communication system and method
|
|
KR0184469B1
(ko)
*
|
1995-10-31 |
1999-05-15 |
김광호 |
착신통화전환서비스가 가입된 자동응답전화기에서 외부 착신통화 전환방법
|
|
US5796811A
(en)
*
|
1995-11-15 |
1998-08-18 |
Gateway Technologies, Inc. |
Three way call detection
|
|
US5805685A
(en)
*
|
1995-11-15 |
1998-09-08 |
Gateway Technologies, Inc. |
Three way call detection by counting signal characteristics
|
|
US6587867B1
(en)
|
1997-05-22 |
2003-07-01 |
Mci Communications Corporation |
Internet-based subscriber profile management of a communications system
|
|
US6330079B1
(en)
|
1997-09-08 |
2001-12-11 |
Mci Communications Corporation |
Integrated voicemail and faxmail platform for a communications system
|
|
US6018575A
(en)
*
|
1997-09-08 |
2000-01-25 |
Mci Worldcom |
Direct distance dialing (DDD) access to a communications services platform
|
|
US6792084B1
(en)
|
1997-09-08 |
2004-09-14 |
Mci, Inc. |
Single telephone number access to multiple communications services
|
|
US7088801B1
(en)
|
1997-09-08 |
2006-08-08 |
Mci, Inc. |
Single telephone number access to multiple communications services
|
|
US6931116B1
(en)
*
|
1997-09-08 |
2005-08-16 |
Mci Communications Corporation |
Multiple routing options in a telecommunications service platform
|
|
US7505406B1
(en)
|
2001-07-13 |
2009-03-17 |
Evercom Systems, Inc. |
Public telephone control with voice over internet protocol transmission
|
|
US7899167B1
(en)
|
2003-08-15 |
2011-03-01 |
Securus Technologies, Inc. |
Centralized call processing
|
|
US8000269B1
(en)
|
2001-07-13 |
2011-08-16 |
Securus Technologies, Inc. |
Call processing with voice over internet protocol transmission
|
|
US6895086B2
(en)
*
|
2001-11-13 |
2005-05-17 |
Inmate Telephone, Inc. |
3-Way call detection system and method
|
|
US7860222B1
(en)
|
2003-11-24 |
2010-12-28 |
Securus Technologies, Inc. |
Systems and methods for acquiring, accessing, and analyzing investigative information
|
|
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
|
|
US9020114B2
(en)
|
2002-04-29 |
2015-04-28 |
Securus Technologies, Inc. |
Systems and methods for detecting a call anomaly using biometric identification
|
|
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
|
|
EP1661371A4
(de)
*
|
2003-08-05 |
2009-05-06 |
Inmate Telephone Inc |
Dreiwege-verbindungsdetektion durch verwendung von steganographie
|
|
US7529357B1
(en)
|
2003-08-15 |
2009-05-05 |
Evercom Systems, Inc. |
Inmate management and call processing systems and methods
|
|
US20080201158A1
(en)
|
2007-02-15 |
2008-08-21 |
Johnson Mark D |
System and method for visitation management in a controlled-access environment
|
|
US8542802B2
(en)
*
|
2007-02-15 |
2013-09-24 |
Global Tel*Link Corporation |
System and method for three-way call detection
|
|
US8811585B1
(en)
|
2007-10-23 |
2014-08-19 |
Sprint Communications Company L.P. |
Communication routing plans that are based on communication device contact lists
|
|
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
|