Patents by Inventor Joan M. Sliwa

Joan M. Sliwa 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).

  • Virtual inter-machine trunking feature for communication networks
    Patent number: 6111945
    Abstract: A method and apparatus are disclosed for routing calls from a communication carrier network to a customer. According to the method, setup signaling including a destination telephone number is received from the carrier network representative of a desired call connection. The destination telephone number and a carrier identifier are referred to a memory and a profile of the carrier network is retrieved therefrom. A routing identifier is retrieved from the profile based on the telephone number. Based upon the routing identifier, the call is routed to its destination.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: August 29, 2000
    Assignee: AT&T Corp.
    Inventors: Anurag Goel, Joan M. Sliwa