Patents by Inventor Amr E. Abdelwahab

Amr E. Abdelwahab 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).

  • Public telephone control with voice over internet protocol transmission
    Patent number: 7505406
    Abstract: Controlled public telephone communication systems includes a plurality of telephones at a given site, a programmable control computer for switching, accessing, routing, timing, billing, and the control of the telephones at the site and a Voice over Internet Protocol (VoIP) network connecting the telephones to an off site public switched telephone network. The programming of the control computer is distributed to remote locations over the VoIP network. A data exchange network interconnects other sites with the telephone communications system being integrated into the data exchange network.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: March 17, 2009
    Assignee: Evercom Systems, Inc.
    Inventors: Thomas R. Spadaro, Martin L. Knodle, Fredrick W. Miller, William J. Salibrici, Amr E. Abdelwahab