US Patent No: 5,583,928

Number of patents in Portfolio can not be more than 2000

Detecting local exchange failure and resultant control of a communications network

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Abstract

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Failure of a local exchange in a communications network (such as the PSTN) is detected by monitoring a combination of parameters. Each parameter in the combination is monitored for meeting predetermined criteria. In particular, a local exchange failure is recognized when the average value of the All Circuits Engaged (ACE) parameters over all traffic routes into a local exchange rises in a significant manner and the average value of the Circuits in Service (CCTS IS) parameters over all traffic routes into that exchange decreases in a significant manner.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANYLONDON, EN1416

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fisk, Donald 875 E. Linn St., Canton, IL 61520 6 33
Swaine, Charles A Shropshire, GB2 2 28
Tester, Brian C Suffolk, GB2 1 22

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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AT&T Bell Laboratories (2)
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INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
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KABUSHIKI KAISHA TOSHIBA (1)
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U.S. Philips Corporation (1)
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UNITED DOMINION INDUSTRIES, INC. (1)
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United Networks, Inc. (1)
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Other [Check patent profile for assignment information] (2)
4,756,019 Traffic routing and automatic network management system for telecommunication networks 72 1986
4,699,113 Air-rich fuel saver 3 1986

Patent Citation Ranking

Forward Cite Landscape

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8,315,364 Commercial product telephonic routing system with mobile wireless and video vending capability 0 2003
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CITICORP DEVELOPMENT CENTER, INC. (3)
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CITIBANK DEVELOPMENT CENTER, INC. (2)
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8,543,506 System and method for delivering financial services 0 2011
 
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (2)
5,930,334 Method and apparatus for monitoring the operation of telecommunications equipment 4 1997
6,343,122 Method and apparatus for routing traffic in a circuit-switched network 21 1998
 
BELLSOUTH INTELLECTUAL PROPERTY CORPORATION (1)
6,640,143 Method for performance measurement and analysis of local exchange carrier interconnections 4 2002
 
CISCO TECHNOLOGY, INC. (1)
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GLOBALFOUNDRIES INC. (1)
8,009,584 System and method for implementing an IRC across multiple network devices 2 2001
 
ORACLE INTERNATIONAL CORPORATION (1)
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