Method and system for purchasing and replenishing wireless network calling time

摘要

The invention provides a method for purchasing and replenishing wireless network calling time. The calling time is purchased through a Web site, and a record of the transaction is maintained on the Web site. Data encoding the purchased calling time is saved from the Web site to a portable networking device. The saved data is then transmitted from the portable networking device to a system onboard a mobile vehicle. An updated record of remaining calling time is maintained within the onboard system, and notification is given when less than a specified amount of calling time remains.