Patents by Inventor Donald M. Parrish, Jr.

Donald M. Parrish, Jr. 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).

  • Dynamic network automatic call distribution
    Patent number: 5450482
    Abstract: A network ACD that, when one switch in the network has blocked services, distributes calls to another switch with available services; wherein such distribution is based on information stored in each switch. The stored information comprises a list of switches within the network wherein an availability status is associated with each service, and an availability status of a trunk connecting the initial switch and the other switches in the network. Each switch sends an updated status to the other switches via a signaling network whenever a service changes status.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: September 12, 1995
    Assignee: AT&T Corp.
    Inventors: Hsing-Tsuen Chen, Donald M. Parrish, Jr., Paul R. Sand