Patents Assigned to Chang-Sheng, Inc.
  • Patent number: 6885856
    Abstract: A method of reducing telephone usage charges billed by a telephone service provider for connecting a source telephone to a target telephone by communicating to a computer system the telephone number of the source telephone, and communicating to the computer system the telephone number of the target telephone, with the computer system originating a connection to the source telephone and originating a connection to the target telephone. The computer system then connects the source telephone to the target telephone. This connection is made such that a telephone service provider for the source telephone interprets the source telephone as a receiving telephone and bills the source telephone number at the discount rate for incoming calls for the telephone call. The computer system for this system may include a PBX system and computers capable of managing phone calls to and from the PBX system to accommodate both two party and multiple party calls.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: April 26, 2005
    Assignee: Chang-Sheng, Inc.
    Inventor: Hadi Nurcahya