AT&T 8525 User's Guide download pdf (Page 70)

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You do not have a valid TeleNav GPS Navigator account. Order TeleNav GPS Navigator by calling TeleNav GPS

Navigator Customer Support at 1-888-353-6284.

18. FAQs

Why do I need the carrier’s data service?

The data plan allows you to access nationwide routes, maps, and Directory content from the TeleNav GPS

Navigator servers using the data communication features of your device. These services are different from your

cellular airtime. To order a data plan from your carrier, please contact their customer support directly. See the

“Customer Support” section on page

71 for contact information.

Does TeleNav GPS Navigator use up my voice plan minutes?

TeleNav GPS Navigator uses data to provide its navigation functions. Using data does not use any of your voice

minutes. However, calling the Voice Address Input System does use about 75 seconds per address entered. The

Voice Call feature internal to the TeleNav GPS Navigator application also uses voice minutes.

How accurate is the GPS?

GPS accuracy can range from 20m (approx. 65 ft) to 100m (approx. 328 ft). Most of the time, the GPS is accurate

to less than 50 meters (approx. 164 ft).

What is ideal GPS environment?

The GPS requires an open, clear view of the sky. Buildings, covered parking areas, tunnels, and dense foliage can

cause the GPS receiver to be unable to locate a GPS satellite or may cause extended initialization time (time to first

GPS fix).

If you are parked in a covered parking lot or near a tall building, it is recommended that you move into an open area

and then begin to use the TeleNav GPS Navigator service.

Why does the GPS not work near buildings and other tall objects?

The GPS uses signals from satellites, so it needs a clear view of the sky. Tall buildings and other objects that block

the GPS receiver’s view to the sky may make it impossible to determine your location. Sometimes the satellites are

not overhead but near the horizon; in these cases, the GPS receiver in your device must have a clear view of the

horizon.

How do I know that the GPS has a signal?

The TeleNav GPS Navigator application on your device alerts you if you do not have a valid GPS signal. If this

happens, move to an area where there is a clear view of the sky so the GPS satellite signal has access to the GPS

receiver in your device.

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AT&T 8525 User's Guide Page 70