Patents by Inventor Azita E. Kia

Azita E. Kia 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).

  • Method and apparatus for authorization based phone calls in packet switched networks
    Patent number: 7720208
    Abstract: A call authorization system moves state maintenance for authorization based phone calls from a central authorization server to different gateways in a packet switched network. A simple authorization session protocol is used between the authorization server and the gateways to minimize network traffic. The authorization session protocol releases the authorization server from having to maintain states for open authorization based phone calls.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: May 18, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Azita E. Kia, Cary FitzGerald, David R. Oran
  • Method and apparatus for authorization based phone calls in packet switched networks
    Patent number: 6404870
    Abstract: A call authorization system moves state maintenance for authorization based phone calls from a central authorization server to different gateways in a packet switched network. A simple authorization session protocol is used between the authorization server and the gateways to minimize network traffic. The authorization session protocol releases the authorization server from having to maintain states for open authorization based phone calls.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: June 11, 2002
    Assignee: Cisco Technology, Inc.
    Inventors: Azita E. Kia, Cary FitzGerald, David R. Oran