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Dual-SIM mobile terminal and operation method for the same

  • US 8,170,614 B2
  • Filed: 09/27/2008
  • Issued: 05/01/2012
  • Est. Priority Date: 09/28/2007
  • Status: Expired due to Fees
First Claim
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1. An operation method for a dual-subscriber identity module (SIM) mobile terminal, comprising:

  • detecting, upon turning on the dual-SIM mobile terminal, whether a first SIM card and a second SIM card are installed in a first card socket and a second card socket;

    storing a SIM identification information regarding the first SIM card if the first SIM card is installed in the first card socket;

    storing SIM identification information regarding the second SIM card if the second SIM card is installed in the second card socket;

    selecting and performing a boot procedure according to the number of installed SIM cards by;

    performing the boot procedure based on the installed SIM card when a single SIM card is installed in a socket; and

    performing the boot procedure based on a preset SIM when both the first and second SIM cards are installed in the sockets,wherein performing a boot procedure comprises;

    inputting an identification signal to the first card socket or the second card socket;

    detecting one of the first SIM card and second SIM card outputting a response signal associated with the identification signal; and

    initializing the dual-SIM mobile terminal using the detected SIM card.

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