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AU2001251170A1 - Method and apparatus for monitoring access to a communications circuit - Google Patents

Method and apparatus for monitoring access to a communications circuit

Info

Publication number
AU2001251170A1
AU2001251170A1 AU2001251170A AU5117001A AU2001251170A1 AU 2001251170 A1 AU2001251170 A1 AU 2001251170A1 AU 2001251170 A AU2001251170 A AU 2001251170A AU 5117001 A AU5117001 A AU 5117001A AU 2001251170 A1 AU2001251170 A1 AU 2001251170A1
Authority
AU
Australia
Prior art keywords
communications circuit
monitoring access
monitor
gradually applied
access
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
AU2001251170A
Inventor
George R. Bailey
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.)
SPIRENT COMMUNICATIONS
Original Assignee
SPIRENT COMM
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 SPIRENT COMM filed Critical SPIRENT COMM
Publication of AU2001251170A1 publication Critical patent/AU2001251170A1/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
    • H04M3/302—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs
    • H04M3/304—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs and using xDSL modems
    • 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
    • H04M2203/00—Aspects of automatic or semi-automatic exchanges
    • H04M2203/05—Aspects of automatic or semi-automatic exchanges related to OAM&P
    • H04M2203/056—Aspects of automatic or semi-automatic exchanges related to OAM&P non-invasive testing, i.e. in operation testing without service interruption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2209—Arrangements for supervision, monitoring or testing for lines also used for data transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Technology Law (AREA)
  • Telephonic Communication Services (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A monitor access is gradually applied an removed from a communications circuit, including a digital subscriber line (DSL), by a gradual monitor access (GMA) technique, in which a variable impedance element is gradually applied to the communications circuit until the monitor can be introduced to the communications circuit without data disruption.
AU2001251170A 2000-03-31 2001-04-02 Method and apparatus for monitoring access to a communications circuit Abandoned AU2001251170A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US19335900P 2000-03-31 2000-03-31
US60/193,359 2000-03-31
US20039000P 2000-04-28 2000-04-28
US60/200,390 2000-04-28
PCT/US2001/010378 WO2001076204A2 (en) 2000-03-31 2001-04-02 Method and apparatus for monitoring access to a communications circuit

Publications (1)

Publication Number Publication Date
AU2001251170A1 true AU2001251170A1 (en) 2001-10-15

Family

ID=26888919

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001251170A Abandoned AU2001251170A1 (en) 2000-03-31 2001-04-02 Method and apparatus for monitoring access to a communications circuit

Country Status (6)

Country Link
US (3) US6993127B2 (en)
EP (1) EP1273160B1 (en)
AT (1) ATE379922T1 (en)
AU (1) AU2001251170A1 (en)
DE (1) DE60131636D1 (en)
WO (1) WO2001076204A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001076204A2 (en) * 2000-03-31 2001-10-11 Spirent Communications Method and apparatus for monitoring access to a communications circuit
US6922464B2 (en) * 2003-08-04 2005-07-26 Spirent Communications Of Rockville, Inc. System and method for hitless monitoring access of a communications circuit
US7065180B2 (en) * 2003-08-04 2006-06-20 Spirent Communications Of Rockville, Inc. System and method for hitless monitoring access of a communications circuit
JP2011024208A (en) 2009-07-13 2011-02-03 Fairchild Semiconductor Corp No pop switch
US8625818B2 (en) * 2009-07-13 2014-01-07 Fairchild Semiconductor Corporation No pop switch
US9292397B1 (en) 2012-05-14 2016-03-22 Netload, Inc. Light-weight method and apparatus for testing network devices and infrastructure
DE102013220155B4 (en) * 2012-10-05 2021-03-04 Ifm Electronic Gmbh Decoupling unit for a two-wire fieldbus for reading bus telegrams
GB2520292A (en) * 2013-11-14 2015-05-20 Snell Ltd Method and apparatus for processing a switched audio signal
CN115473024A (en) * 2022-10-26 2022-12-13 国网江苏省电力有限公司扬州供电分公司 High-power directional coupler

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799725A (en) * 1954-09-14 1957-07-16 Int Standard Electric Corp Arrangement for coupling monitoring devices to two-wire communications transmission lines
GB922885A (en) * 1960-07-26 1963-04-03 Ass Elect Ind Improvements relating to electronic circuit arrangements
US3708634A (en) * 1971-11-09 1973-01-02 Northern Electric Co Telephone hand test set
US4791659A (en) * 1986-10-30 1988-12-13 Domain Systems, Inc. Remote test telephone line access system
US5581228A (en) 1992-04-02 1996-12-03 Applied Digital Access, Inc. Digital signal comparison circuit in a performance monitoring and test system
US5329586A (en) 1992-05-29 1994-07-12 At&T Bell Laboratories Nonlinear echo canceller for data signals using a non-redundant distributed lookup-table architecture
JPH07123027A (en) 1993-10-26 1995-05-12 Fujitsu Ltd Digital subscriber line transmission equipment
US5859906A (en) * 1996-11-19 1999-01-12 Thomson Consumer Electronics, Inc. Telephone switch hook interface circuit
US6181791B1 (en) 1998-01-06 2001-01-30 Stmicroelectronics, Inc. Apparatus and method for reducing local interference in subscriber loop communication system
US6215856B1 (en) * 1998-08-11 2001-04-10 Avaya Technology Corp. Dual mode monitor module
US6216856B1 (en) * 1999-12-14 2001-04-17 Hong Ku Park Holder for assorted desk articles
WO2001076204A2 (en) * 2000-03-31 2001-10-11 Spirent Communications Method and apparatus for monitoring access to a communications circuit
US6922464B2 (en) * 2003-08-04 2005-07-26 Spirent Communications Of Rockville, Inc. System and method for hitless monitoring access of a communications circuit
US7065180B2 (en) * 2003-08-04 2006-06-20 Spirent Communications Of Rockville, Inc. System and method for hitless monitoring access of a communications circuit

Also Published As

Publication number Publication date
US20060119995A1 (en) 2006-06-08
US7961847B2 (en) 2011-06-14
WO2001076204A2 (en) 2001-10-11
DE60131636D1 (en) 2008-01-10
US20070291908A1 (en) 2007-12-20
EP1273160A2 (en) 2003-01-08
EP1273160B1 (en) 2007-11-28
US20020025032A1 (en) 2002-02-28
US6993127B2 (en) 2006-01-31
WO2001076204A3 (en) 2002-09-19
ATE379922T1 (en) 2007-12-15
US7260185B2 (en) 2007-08-21

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