Patents by Inventor Calvin J. Stein

Calvin J. Stein 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 of establishing a communications call
    Patent number: 7720204
    Abstract: A method system, interface and server for establishing a communications call by selecting a B party (6) using an interactive device (16) connected to a public network (10,12), sending called address data for the B party (6) and calling address data for an A party (4) to a communications platform (18) of the public network (10,12), and establishing a call between the A and B parties (4,6) over the public network (10,12) using the communications platform (18) and the called and calling address data. The called address data can be accessed from the public network, and may reside on a server of a messaging network, such as the Internet.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: May 18, 2010
    Assignee: Telstra Corporation Limited
    Inventors: Victor Wiener, Calvin J. Stein, Carlos Escobar
  • Enhanced telephony apparatus and system
    Patent number: 5519770
    Abstract: An enhanced services unit for connection to existing exchanges is described. The unit is connected via an exchange emitting CCITT common channel signaling system #7 (CCSS#7) trunk connections to an existing exchange and is viewed by the exchange as another exchange. The unit may control switching via re-entrant trunks on the main exchange. Services are software defined and may be configured to suit particular customers. An advantageous implementation of the message transfer part of CCSS#7 is also described.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: May 21, 1996
    Assignee: Australian and Overseas Telecommunications Corporation Limited
    Inventor: Calvin J. Stein