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System and method of messaging using MIN escape codes

  • US 7,113,802 B2
  • Filed: 05/28/2003
  • Issued: 09/26/2006
  • Est. Priority Date: 05/28/2003
  • Status: Active Grant
First Claim
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1. A method of providing communication between a mobile terminal and a wireless communications system including a Mobile Switching Center (MSC) and a base station comprising:

  • using a 10 digit Mobile Identity Number (MIN) identifier for identifying the mobile terminal in messages using a mobile terminal identifier sent from the MSC to the mobile terminal;

    using a 15 digit MIN-based International Mobile Station Identity (IMSI) identifier for identifying the mobile terminal in messages using a mobile terminal identifier sent from the mobile terminal to the MSC, wherein the 15 digit MIN-based IMSI includes a 5 digit MIN Escape Code (MEC) and the MIN;

    collecting 5 digit MECs programmed in mobile terminals communicating directly with their home systems;

    collecting 5 digit MEC programmed in mobile terminals visiting visited systems;

    comparing the collected MECs with the MECs stored in the system;

    determining which collected MECs are incorrect;

    determining which mobile terminals have incorrect MECs; and

    correcting the MECs for mobile terminals having incorrect MECs.

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