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Method for transmitting tariff data to a subscriber unit

  • US 5,848,138 A
  • Filed: 07/22/1996
  • Issued: 12/08/1998
  • Est. Priority Date: 01/24/1994
  • Status: Expired due to Fees
First Claim
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1. A method for transmitting tariff data via radio-frequency signals to a chargeable subscriber unit communicating with a telecommunication network, the method comprising:

  • transmitting a first tariff frame to the chargeable subscriber unit, the first tariff frame corresponding to a first tariff rate for at least a portion of a call;

    counting charge-metering signals received from the telecommunication network; and

    transmitting a second tariff frame to the chargeable subscriber unit when a monetary value, corresponding to a number of the counted charge-metering signals counted since the first tariff frame was transmitted to the chargeable subscriber unit exceeds a predetermined threshold value, the second tariff frame corresponding to a second tariff rate for at least a portion of the call.

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