Patents by Inventor Edward W. Greenberg

Edward W. Greenberg 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).

  • VOICE OVER INTERNET PROTOCOL PAYPHONE DIAL TONE SERVICE SYSTEM
    Publication number: 20080037742
    Abstract: The Payphone Dial Tone Service System receives control and communication data via a VoIP communication connection that originates at an Analog Terminal Adapter and modem connected to the smart payphone. The Analog Terminal Adapter and modem communicate exclusively with the Payphone Dial Tone Service System of the Payphone Dial Tone Service Provider and transmit a unique code to identify the smart payphone. The Payphone Dial Tone Service System validates the smart payphone and originates an Internet-based communication session to the appropriate carrier or Public Switched Telephone Network gateway. The Payphone Dial Tone Service System also manages the ANI data to ensure proper terminal identification and AMA billing.
    Type: Application
    Filed: April 7, 2007
    Publication date: February 14, 2008
    Inventor: Edward W. Greenberg