Patents by Inventor Andrew T. Perlman

Andrew T. Perlman 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 and method for establishing a call telecommunications path
    Patent number: 6128291
    Abstract: This invention provides a path establishment device and method for establishing a path for a telecommunications call. In a preferred embodiment, the path establishment device of this invention includes an originating call processor in communication with an originating telecommunications network and a packet-based telecommunications network, a terminating call processor in communication with the packet-based telecommunications network and a public telecommunications network, and means for establishing a communication path from the originating telecommunications network through the packet-based telecommunications network to a destination served by the public telecommunications network. The path establishment device and method of the present invention thus provides, among other advantages, for the use of a potentially less expensive packet-switched telecommunications network as a long distance carrier between two public switched telecommunications networks.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: October 3, 2000
    Assignee: Cignal Global Communications, Inc.
    Inventors: Andrew T Perlman, Mark S Land, Steven J Kruy, Edward A Walvick
  • System and method for establishing a call telecommunications path
    Patent number: 5751706
    Abstract: This invention provides a path establishment device and method for establishing a path for a telecommunications call. In a preferred embodiment, the path establishment device of this invention includes an originating call processor in communication with an originating telecommunications network and a packet-based telecommunications network, a terminating call processor in communication with the packet-based telecommunications network and a public telecommunications network, and means for establishing a communication path from the originating telecommunications network through the packet-based telecommunications network to a destination served by the public telecommunications network. The path establishment device and method of the present invention thus provides, among other advantages, for the use of a potentially less expensive packet-switched telecommunications network as a long distance carrier between two public switched telecommunications networks.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: May 12, 1998
    Assignee: Cignal Global Communications, Inc.
    Inventors: Mark S. Land, Steven J. Kruy, Andrew T. Perlman, Edward A. Walvick