Search Patents
  • Publication number: 20130003563
    Abstract: A method and system for detecting service disruptions in a packet network is described. In one example, a plurality of data reports is received. A determination is then made as to whether a number of the plurality of data reports that pertain to a particular class has exceeded a predetermined threshold. In the event the threshold is exceeded, at least one notification is transmitted.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 3, 2013
    Applicant: AT&T Corp.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7369506
    Abstract: The present invention enables the network to determine the true state of events that appear normal but produce service disruptions by periodically probing the status of all network elements and endpoints and comparing this status to historical graphs of the network. Events that deviate from a historical view will be alarmed to determine their true status.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: May 6, 2008
    Assignee: AT&T Corp.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Publication number: 20090052335
    Abstract: A method and system for graphically displaying call signaling flows for a communications network is described. In one example, a call flow alarm indicating an improper call signaling flow for a call is received. A respective projected call signaling flow associated with the call is then obtained. Lastly, the improper call signaling flow and the respective projected call signaling flow are graphically displayed.
    Type: Application
    Filed: October 31, 2008
    Publication date: February 26, 2009
    Inventors: Marian Croak, Hossein Eslambolchi
  • Publication number: 20120076004
    Abstract: A method and system for transmitting data corresponding to at least one endpoint device problem in a packet communications network is described. Specifically, an endpoint device detects at least one problem that pertains to the endpoint device. The endpoint device then generates data pertaining to the endpoint device problem. Lastly, the endpoint device then transmits the data detailing that endpoint device problem to the packet communications network.
    Type: Application
    Filed: December 6, 2011
    Publication date: March 29, 2012
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 8804539
    Abstract: A method and system for detecting service disruptions in a packet network is described. In one example, a plurality of data reports is received. A determination is then made as to whether a number of the plurality of data reports that pertain to a particular class has exceeded a predetermined threshold. In the event the threshold is exceeded, at least one notification is transmitted.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 12, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7978601
    Abstract: The invention comprises a method and apparatus for analyzing a network. Specifically, the method comprises receiving information associated with the network, automatically constructing a network representation using the information, and performing at least one network performance test, wherein the at least one network performance test is performed using at least a portion of the network representation.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: July 12, 2011
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 8284679
    Abstract: A method and system for detecting service disruptions in a packet network is described. In one example, a plurality of data reports is received. A determination is then made as to whether a number of the plurality of data reports that pertain to a particular class has exceeded a predetermined threshold. In the event the threshold is exceeded, at least one notification is transmitted.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: October 9, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7447159
    Abstract: A method and system for graphically displaying call signaling flows for a communications network is described. In one example, a call flow alarm indicating an improper call signaling flow for a call is received. A respective projected call signaling flow associated with the call is then obtained. Lastly, the improper call signaling flow and the respective projected call signaling flow are graphically displayed.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: November 4, 2008
    Assignee: AT&T Corp.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7933213
    Abstract: A method and apparatus for proactively managing TDM circuits used in a packet network, e.g., a VoIP network, by allowing it to instruct a program to periodically test the health of all circuits catalogued in the TDM facility database are disclosed. If a circuit is found to be out of service, the present invention will trigger a maintenance action through the edge component of the VoIP network to reset the circuit and restore it to a healthy condition.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: April 26, 2011
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7995486
    Abstract: A method and system for graphically displaying call signaling flows for a communications network is described. In one example, a call flow alarm indicating an improper call signaling flow for a call is received. A respective projected call signaling flow associated with the call is then obtained. Lastly, the improper call signaling flow and the respective projected call signaling flow are graphically displayed.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: August 9, 2011
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 8614959
    Abstract: A method and apparatus for testing a message set in a communications network are described. In one embodiment, a change in the communications network is initially detected. Communication between a customer premise equipment (CPE) and at least one border element in the communication network is subsequently established. Afterwards, a test suite is executed to simultaneously certify that a message set employing a plurality of protocols supported by the communication network is supported by the at least one border element.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: December 24, 2013
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7447160
    Abstract: A method and apparatus for automating test procedures to determine if non-emergency signaling message processing errors impact emergency calls, e.g., E911 calls, are disclosed. In one embodiment, the present method alerts network engineers so that crankback procedures to alternative routes can be instituted when these E911 call impacting error conditions are detected in a network.
    Type: Grant
    Filed: December 31, 2005
    Date of Patent: November 4, 2008
    Assignee: AT&T Corp.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7843841
    Abstract: A method and apparatus for automating test procedures to determine if non-emergency signaling message processing errors impact emergency calls, e.g., E911 calls, are disclosed. In one embodiment, the present method alerts network engineers so that crankback procedures to alternative routes can be instituted when these E911 call impacting error conditions are detected in a network.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: November 30, 2010
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 8687502
    Abstract: A method and system for transmitting data corresponding to at least one endpoint device problem in a packet communications network is described. Specifically, an endpoint device detects at least one problem that pertains to the endpoint device. The endpoint device then generates data pertaining to the endpoint device problem. Lastly, the endpoint device then transmits the data detailing that endpoint device problem to the packet communications network.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: April 1, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 8094568
    Abstract: A method and system for transmitting data corresponding to at least one endpoint device problem in a packet communications network is described. Specifically, an endpoint device detects at least one problem that pertains to the endpoint device. The endpoint device then generates data pertaining to the endpoint device problem. Lastly, the endpoint device then transmits the data detailing that endpoint device problem to the packet communications network.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: January 10, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Publication number: 20120320762
    Abstract: The present invention enables a method for following the state of a call and generating defects as function of call completion success as opposed to discrete events that happen at individual network elements during the call. In one embodiment, the invention uses Call Detail Records (CDR) to analyze the end-to-end completion status to measure per call basis defects instead of using defect codes generated by network elements on a per equipment basis. CDR is data associated with a telephone call, including the calling and the called numbers, the date and timestamp, the duration, the call setup delay, and the final handling code of the telephone call.
    Type: Application
    Filed: August 27, 2012
    Publication date: December 20, 2012
    Applicant: AT&T Corp.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Publication number: 20120327788
    Abstract: A method and apparatus for calculating a cost index in a communication network. In one embodiment, a plurality of first cost factors associated with a first set of network elements is obtained. Subsequently, a plurality of second cost factors associated with a second set of network elements is obtained. A first cost index is then determined based on the plurality of first cost factors associated with the first set of network elements. Similarly, a second cost index is determined based on the plurality of second cost factors associated with the second set of network elements. Afterwards, the first cost index is compared to the second cost index to determine a point in time when a service provider should minimize new investment in the first set of network elements.
    Type: Application
    Filed: September 1, 2012
    Publication date: December 27, 2012
    Applicant: AT&T Corp.
    Inventors: Marian Croak, Hossein Eslambolchi