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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 phone. These services are different from your cellular airtime. To

order a data plan from your wireless carrier, please contact their customer support directly.

How long after I apply for the data service until I can use my TeleNav system?

Generally, it takes until the following business morning before the data services are fully provisioned. If you already have

data services, it should be no more than 4 hours before an added TeleNav plan is active.

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 do I increase or decrease the voice prompt volume?

The speaker’s initial volume level can be controlled from within TeleNav’s Menu >> Preferences >> General. Speaker

volume can also be controlled with the volume buttons on the left-hand side of the device.

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 phone 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 phone 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 receiver can hear the GPS signals from space.

What happens if I’m using TeleNav GPS Navigator for driving directions and I lose the GPS signal while driving

across a bridge or through a tunnel or lose the GPS signal for some other reason?

TeleNav GPS Navigator remembers the speed at which you were driving before losing the GPS signal. TeleNav GPS

Navigator continues to give you driving directions based on an estimate of the projected distance that you may have

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