×

Mobile communication terminal, wireless data service authentication server, system for automatically blocking voice call connection, and method of processing various messages in mobile communication terminal

  • US 7,418,257 B2
  • Filed: 08/24/2005
  • Issued: 08/26/2008
  • Est. Priority Date: 08/31/2004
  • Status: Active Grant
First Claim
Patent Images

1. A mobile communication terminal, comprising:

  • a key input unit for allowing a user to input an operation command;

    a memory unit for storing authentication information including an authentication algorithm, an authentication key, a terminal ESN (electronic serial number), a subscriber MIN (mobile identification number), an SSD (shared secret data), and terminal usage time information;

    a RF (radio frequency) communication unit for transmitting/receiving voice and data signals to/from the wireless network via an antenna; and

    a control unit including an authentication processor to generate a voice call initiation message including an authentication information containing the terminal usage time information upon receiving a voice call connection request message from the key input unit, to transmit the voice call initiation message, and to perform a voice call release process upon receiving an authentication failure message from a wireless network in response to the voice call initiation message.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×