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Portable telephone terminal device and a method for restricting pay service for using the terminal device

  • US 20040102179A1
  • Filed: 11/19/2003
  • Published: 05/27/2004
  • Est. Priority Date: 11/20/2002
  • Status: Active Grant
First Claim
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1. A portable telephone terminal device comprising:

  • a recording medium to record information of a subscriber, and means for restricting execution of a service that incurs payment except for telephone call fee based on information indicative of master-slave relation recorded in said recording medium.

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