Patents Assigned to Transcript International, Inc.
  • Voice security between a composite channel telephone communications link and a telephone
    Patent number: 6256491
    Abstract: An apparatus and method for security of individual communications over a composite communications channel such as T1 or E1. The composite channel is digitized. Individual channels are separated, but identifying information of each channel is retained. A level of security can be chosen for each channel by digitally processing the selected call with a selected level of scrambling or encryption prior to passing the call to an end-user.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: July 3, 2001
    Assignee: Transcript International, Inc.
    Inventors: Douglas E. Ehlers, Christopher Aaron Hall, James R. Holthaus