Patents by Inventor Tript P. Singh

Tript P. Singh 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 system for call signaling in telephone calls over a packet-switched network
    Patent number: 6353610
    Abstract: A telephone call from first telephone device to a second telephone device is initiated by a call directly from the first telephone device to a first gateway. The first gateway receives dialed digits from the second telephone device, identifies an address on a packet switched network of a second gateway associated with the second telephone device, which identified by the dialed digits. The first gateway contacts the second gateway via the packet-switched network. The second gateway initiates a circuit-switched telephone connection to the second telephone device. When a ringing signal or busy signal is received from the second telephone device by the second gateway, the second gateway provides a signal via the packet-switched network to the first gateway. The first gateway provides the corresponding signal to the first telephone device.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: March 5, 2002
    Assignee: Lucent Technologies, Inc.
    Inventors: Saswata Bhattacharya, Mahendra Pratap, Harvey S. Schultz, Tript P. Singh, Quan Li, Ghassan Z. Qadah, Gregory J. D'Angelo