Patents by Inventor Edward F Holmes

Edward F Holmes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System for VOIP based emergency stand alone service
    Patent number: 8059798
    Abstract: Method and apparatus for ad hoc cooperative routing in an IP network. Included is an emergency stand alone (ESA) system that provides a bypass to a failed TDM switch for multiple communication devices in communication with one or more TDM switches. One or more internet protocol media gateways communicate a multicast signal upon the failure of a switch. The multicast initiates Voice over IP communication between endpoints, bypassing the failed switch.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: November 15, 2011
    Inventors: Michael A Skubisz, Edward F Holmes, Brian St. Pierre, David L Cullerot