WO2005025185A3 - Three-way call detection using steganography - Google Patents

Three-way call detection using steganography Download PDF

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Publication number
WO2005025185A3
WO2005025185A3 PCT/US2004/025029 US2004025029W WO2005025185A3 WO 2005025185 A3 WO2005025185 A3 WO 2005025185A3 US 2004025029 W US2004025029 W US 2004025029W WO 2005025185 A3 WO2005025185 A3 WO 2005025185A3
Authority
WO
WIPO (PCT)
Prior art keywords
steganography
call detection
way call
signal
hidden
Prior art date
Application number
PCT/US2004/025029
Other languages
French (fr)
Other versions
WO2005025185A2 (en
Inventor
Thomas J Martin
Original Assignee
Inmate Telephone Inc
Thomas J Martin
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34272478&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2005025185(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Inmate Telephone Inc, Thomas J Martin filed Critical Inmate Telephone Inc
Priority to EP04809530A priority Critical patent/EP1661371A4/en
Priority to AU2004303075A priority patent/AU2004303075B2/en
Priority to CA002534767A priority patent/CA2534767A1/en
Publication of WO2005025185A2 publication Critical patent/WO2005025185A2/en
Publication of WO2005025185A3 publication Critical patent/WO2005025185A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/663—Preventing unauthorised calls to a telephone set
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2281—Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/663—Preventing unauthorised calls to a telephone set
    • H04M1/665—Preventing unauthorised calls to a telephone set by checking the validity of a code

Abstract

The present invention involves a device that connects to a telephone, either at the line or handset interfaces, and produces a known signal that is steganographically hidden within the user’s normal voice signal. Detection equipment, residing at another location, monitors signals on telephone calls and tests for the presence of the hidden signal or data generated by the invention. Once detection is achieved, appropriate action for terminating or recording the call may be taken.
PCT/US2004/025029 2003-08-05 2004-08-04 Three-way call detection using steganography WO2005025185A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04809530A EP1661371A4 (en) 2003-08-05 2004-08-04 Three-way call detection using steganography
AU2004303075A AU2004303075B2 (en) 2003-08-05 2004-08-04 Three-way call detection using steganography
CA002534767A CA2534767A1 (en) 2003-08-05 2004-08-04 Three-way call detection using steganography

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49228803P 2003-08-05 2003-08-05
US60/492,288 2003-08-05

Publications (2)

Publication Number Publication Date
WO2005025185A2 WO2005025185A2 (en) 2005-03-17
WO2005025185A3 true WO2005025185A3 (en) 2006-05-26

Family

ID=34272478

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/025029 WO2005025185A2 (en) 2003-08-05 2004-08-04 Three-way call detection using steganography

Country Status (5)

Country Link
US (2) US7248685B2 (en)
EP (1) EP1661371A4 (en)
AU (1) AU2004303075B2 (en)
CA (1) CA2534767A1 (en)
WO (1) WO2005025185A2 (en)

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US20090060158A1 (en) * 2007-08-29 2009-03-05 Inmate Calling Solutions Llc D/B/A Icsolutions Method and system to detect a multi-party telephone call
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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
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Also Published As

Publication number Publication date
US20070269033A1 (en) 2007-11-22
AU2004303075A1 (en) 2005-03-17
EP1661371A2 (en) 2006-05-31
CA2534767A1 (en) 2005-03-17
US20050058267A1 (en) 2005-03-17
AU2004303075B2 (en) 2009-06-25
US7826604B2 (en) 2010-11-02
WO2005025185A2 (en) 2005-03-17
US7248685B2 (en) 2007-07-24
EP1661371A4 (en) 2009-05-06

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