Content Summary : TeleNav 5.1 utilizes the integration of GPS position determination technology, the Java™ programming environment, and access to your wireless carrier’s data network. With regard to GPS location information: • Verizon 8703e and 8830, along with all 8100, 8300, and 8700 BlackBerries require an external GPS receiver to be connected via Bluetooth. • Sprint and Alltel 8703e and 8830 have an internal GPS receiver. An external Bluetooth GPS receiver can also be used. • There is a Preference setting within TeleNav that allows you to switch between the available GPS receivers. The TeleNav application provides: • GPS navigation that punctually guides you turn-by-turn to any destination address in the U.S. and Canada. If you miss a turn or get off-track, TeleNav will calculate a new route for you. You can enter one or more destination addresses by calling an automatic voice recognition system, entering them on the TeleNav website, keying them directly into the device, or by pulling them directly from the BlackBerry Address Book. Optionally, you can input a remote origin and receive Driving Directions from that origin address to the selected destination address.