AU6952898A - Apparatus and method for detecting either a fault or an unauthorized tap in a telephone line - Google Patents

Apparatus and method for detecting either a fault or an unauthorized tap in a telephone line

Info

Publication number
AU6952898A
AU6952898A AU69528/98A AU6952898A AU6952898A AU 6952898 A AU6952898 A AU 6952898A AU 69528/98 A AU69528/98 A AU 69528/98A AU 6952898 A AU6952898 A AU 6952898A AU 6952898 A AU6952898 A AU 6952898A
Authority
AU
Australia
Prior art keywords
fault
detecting
telephone line
unauthorized
tap
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.)
Abandoned
Application number
AU69528/98A
Inventor
Hector M. Vasquez
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.)
DONALD D CRISS Co DOING BUSINESS AS ANTI-WIRETAP DEVICES Co
Original Assignee
DONALD D CRISS CO DOING BUSINE
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 DONALD D CRISS CO DOING BUSINE filed Critical DONALD D CRISS CO DOING BUSINE
Publication of AU6952898A publication Critical patent/AU6952898A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/68—Circuit arrangements for preventing eavesdropping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/085—Fault locating arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/20—Automatic or semi-automatic exchanges with means for interrupting existing connections; with means for breaking-in on conversations
    • H04M3/205—Eavesdropping prevention - indication of insecurity of line or network

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
AU69528/98A 1998-04-06 1998-04-06 Apparatus and method for detecting either a fault or an unauthorized tap in a telephone line Abandoned AU6952898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1998/006797 WO1999052256A1 (en) 1998-04-06 1998-04-06 Apparatus and method for detecting either a fault or an unauthorized tap in a telephone line

Publications (1)

Publication Number Publication Date
AU6952898A true AU6952898A (en) 1999-10-25

Family

ID=22266774

Family Applications (1)

Application Number Title Priority Date Filing Date
AU69528/98A Abandoned AU6952898A (en) 1998-04-06 1998-04-06 Apparatus and method for detecting either a fault or an unauthorized tap in a telephone line

Country Status (2)

Country Link
AU (1) AU6952898A (en)
WO (1) WO1999052256A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6925173B2 (en) * 2002-01-31 2005-08-02 Lucent Technologies Inc. Optimization of a DSL-compatible POTS line card

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4229626A (en) * 1979-08-01 1980-10-21 Bell Telephone Laboratories, Incorporated Loop fault sectionalization
US4634813A (en) * 1985-02-07 1987-01-06 Secom General Corp. Wire tap detection device
US4680783A (en) * 1985-12-16 1987-07-14 Gte Communication Systems, Inc. Telephone security violation detection device
JPH03104460A (en) * 1989-09-19 1991-05-01 Nippon Conlux Co Ltd Privacy call equipment

Also Published As

Publication number Publication date
WO1999052256A1 (en) 1999-10-14

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase