A system and method allowing a mobile device user to initiate a transaction over the most widely used network such as a CDMA or GSM network and then have the device complete the transaction over a specialized data network such as Wi-Fi. The system includes a server communicating with a wireless device that maintains indexed data from the user's original transaction to ensure integrity through the completion of the transaction. The system also includes a method for the user to purchase content, download the content and upon successful completion, have it appropriately billed.