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Providing multiple MSISDN numbers in a mobile device with a single IMSI

  • US 20050192035A1
  • Filed: 02/18/2004
  • Published: 09/01/2005
  • Est. Priority Date: 02/18/2003
  • Status: Active Grant
First Claim
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1. A communication system comprising:

  • a mobile device including a Subscriber Identity Module (SIM) and an International Mobile Subscriber Identity (IMSI);

    a first Mobile Subscriber Integrated Service Digital Network (MSISDN) number for use in a first public mobile network;

    a second MSISDN number for use in a second public mobile network; and

    at least one signal gateway coupled among components of the first public mobile network and the second public mobile network, wherein the signal gateway couples calls between the SIM and the first public mobile network using the first MSISDN, wherein the signal gateway couples calls between the SIM and the second public mobile network using the second MSISDN.

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