초록

Method and apparatus for communicating credit card information read at a mobile radiotelephone unit is disclosed. Data read from a credit card is placed in a variable length error protected format and transmitted from the mobile radiotelephone unit to authorize payment of the radiotelephone call.

대표청구항 ▼

A method for communicating credit card information from a mobile radiotelephone unit to a radiotelephone system in which a radiotelephone call from the mobile unit will be authorized if the costs of the radiotelephone call may be charged against a valid credit card, comprising the steps of: reading

A method for communicating credit card information from a mobile radiotelephone unit to a radiotelephone system in which a radiotelephone call from the mobile unit will be authorized if the costs of the radiotelephone call may be charged against a valid credit card, comprising the steps of: reading a credit card identification number and creating a data field therefrom at the mobile unit; generating a message having a format comprising: (a) an opening flag of at least one start-of-header (SOH) character, (b) a data length character, (c) a message type character, (d) said created data field, (e) at least one cyclic redundancy code character, and (f) at least one longitudinal redundancy check character; and transmitting said generated message from a transmitter of the mobile unit.