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Location information erase on SIM cards

  • US 7,089,036 B2
  • Filed: 12/21/2000
  • Issued: 08/08/2006
  • Est. Priority Date: 10/03/2000
  • Status: Expired due to Term
First Claim
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1. A method of organizing a search for a service provider in a wireless device storing location information, the method comprising:

  • determining whether the location information is associated with a recently used service provider that is neither a home service provider nor a preferred service provider;

    at power down of the wireless device, erasing at least part of the location information associated with the recently used service provider as a result of the determination that the location information is associated with a recently used service provider; and

    at power up of the wireless device, selecting a service provider from a list comprising a home service provider and one or more preferred service providers.

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