Patents Represented by Attorney, Agent or Law Firm Thomas A. Gigliotti
  • Patent number: 6529475
    Abstract: A method and system for reducing congestion of real time data traffic on a multimedia communications network having a traffic control mechanism. The method comprises of first extracting from data traffic in the multimedia communications network information regarding congestion of the multimedia communications network. This extraction is performed by a network of monitors. Secondly, congestion is regulated by a central server which receives network information from the monitors and utilizes the network information to analyze congestion status and communicate instructions to the multimedia communications network to reduce congestion.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: March 4, 2003
    Assignee: Nortel Networks Limited
    Inventors: Guang Wan, Jonathan Weston-Dawkes
  • Patent number: 6463053
    Abstract: A method for a user of telecommunication services to dynamically interchange routing paths between a carrier network circuit and the Internet for connecting to a destination. A user code is allocated which marks a connection request as requesting switching/routing via an IP network. When the code is detected by a carrier switch, the call connections are routed through the IP network. The user is provided with the option of terminating the IP network connection and selecting carrier network connection without call interruption.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: October 8, 2002
    Assignee: Nortel Networks Limited
    Inventor: Xiao L. Chen
  • Patent number: 6418139
    Abstract: A system for routing of data traffic on a communications network comprising a plurality of gatekeepers interlinked to form a network wherein the plurality of gatekeepers control bandwidth and routing of data packets towards destination terminals. A plurality of routers aggregate real time flow of data packets through said gatekeepers, and terminals which are connected to the network via the gatekeepers, negotiate connection parameters. Real time flow of said data packets is directed from one end point terminal to another utilizing the gatekeepers and the routers.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: July 9, 2002
    Assignee: Nortel Networks Limited
    Inventor: Shahid Akhtar