Patent ID: 8417641

Claim:
A method for licensing an MP3 application on a wireless mobile device, the method comprising: determining, by the wireless mobile device, that the MP3 application has not obtained a license certificate to operate on the wireless mobile device; providing a licensable version of the MP3 application on the wireless mobile device, wherein the license certificate for the MP3 application has not been received; receiving a first request to use the MP3 application on the wireless mobile device; determining, by the wireless mobile device, whether an air interface is active, wherein if no air interface is active, the wireless mobile device: retrieves a temporary use indicator from the wireless mobile device; and activates the application only if the temporary use indicator permits the activation; wherein if an air interface is active, the method further comprises: activating the MP3 decoder on the wireless mobile device after receiving the first request to use the MP3 application and before the license certificate for the MP3 application has been received; generating a license request for the MP3 decoder on the wireless mobile device; formatting the license request as an SMS message; transmitting the license request to an MP3 license server; confirming, at the MP3 license server, that the wireless mobile device is authorized to receive an MP3 license; and receiving, at the wireless mobile device, an MP3 license certificate for the MP3 application, wherein the MP3 license is associated with a license fee due for activation of the MP3 application after the first request for the MP3 application.