Patent ID: 7970421

Claim:
A system for communication with a wireless communication device, the system comprising: a request transmitter configured to transmit a first content request message to the wireless communication device, the first content request message comprising a plurality of response content options; a key code assigner configured to assign a different key code to each of the response content options of the first content request message prior to transmission of the first content request message to the wireless communication device by the request transmitter, the request transmitter being further configured to transmit a second content request message comprising a plurality of response content options to the wireless communication device after transmitting the first content request messages to the wireless communication device but before a response to the first content request message is received from the wireless communication device, the key code assigner being further configured to dynamically assign a different key code to each of the response content options of the second content request message prior to transmission of the second content request message to the wireless communication device based upon the key codes assigned to the response content options of the first content request message by the key code assigner, the key codes dynamically assigned to the response content options of the second content request message being different from the key codes assigned to the response content options of the first content request message; a data storage containing key code assignments made by the key code assigner to the response content options of the second content request message; and a response identifier configured to identify a characteristic of a response message containing one of the key codes assigned to the response content options of the second content request message, the response identifier being configured to identify the characteristic of the response message based upon the key code received in the response message and the key code assignments contained in the data storage, the response message elicited by transmission of the second content request message to the wireless communication device.