Telecommunications system

  • US 7,551,933 B2
  • Filed: 08/09/2002
  • Issued: 06/23/2009
  • Est. Priority Date: 06/15/1993
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of communicating between a remote station and a GSM-compatible cellular telephone capable of two-way voice communication, comprising:

  • selectively transmitting from the remote station to the cellular telephone an SMS text message containing text;

    selectively transmitting from the remote station to the cellular telephone an SMS write command message containing a write command and associated write data, the cellular telephone including a removably coupled SIM card;

    the cellular telephone detecting an incoming communication as an incoming SMS write command message or an incoming SMS text message; and

    in the event the incoming communication is an SMS text message, displaying at least a portion of the text contained in the incoming SMS text message on a display associated with the cellular telephone; and

    in the event the incoming communication is an SMS write command message, the SIM card decoding the write command contained in the SMS write command message.

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