Radiotelephone credit card data communications

A credit-card radiotelephone responsive to a credit card number for placing telephone calls, said credit-card radiotelephone disposed in a vehicle having a door, said credit-card radiotelephone comprising:

• telephone handset means having microphone means with an output, speaker means with an input, and dialing means with an output indicating a dialed number;
• radio transceiver means having transmitting means with an input, receiving means with an output, and first control means having an input for electronically locking and unlocking said radio transceiver means, the microphone means output being coupled to the transmitting means input, and the receiving means output being coupled to the speaker means input;
• credit card reading means for reading a credit card number and producing an output indicating the read credit card number;
• door switch means having an output indicating that the door is open;
• hookswith means for receiving the telephone handset means and having an output indicating that the telephone handset is removed therefrom;
• and
• second control means coupled to the credit card reading means output for receiving the read credit card number and determining if the read credit card number is valid, said second control means coupled to the first control means input, hookswitch means output and the dialing means output for electronically unlocking said transceiver means and placing telephone calls when the read credit card number is determined to be valid, and said second control means coupled to the door switch means output for electronically locking said transceiver means when the door is opened.