Patent ID: 7844245

Claim:
A method for activating wireless data communication service, the method comprising the steps of: formulating a network access identifier (NAI) that is exclusive to a data device, the NAI supporting only communication service access for service provisioning with a network service provider; receiving a first wireless call by the data device to the network service provider, the first wireless call using the formulated NAI without using a MDN for the data device, the data device lacking a pre-assigned mobile directory member (MDN); establishing payment to the network service provider for data communication service for the data device, during the first call; assigning a MDN for authorized data communication for the data device by the network provider for a pre-set service time period; terminating the first call; initiating a second wireless call by the data device to the network service provider using the formulated NAI; entering an authorization code by the data device; downloading the assigned MDN from the network provider to the data device, to provision the data device to use the assigned MDN for authorized data communication for the pre-set service time period, wherein the pre-set service time period commences after the downloading, wherein the step of downloading the assigned MDN is responsive to the entry of the authorization code by the data device; sensing when initiation of an additional data call occurs; determining whether the sensed additional data call initiation occurrence is within the pre-set service time period; connecting the additional data call for network communication only if time of the pre-set service time period has not expired; maintaining assignment of the MDN to the data device for a grace time period in excess of the pre-set service time period; and canceling the assignment of the MDN to the data device based upon expiration of time of the grace time period.