Nokia E7-00 - Manual (Page 86)

With network (cell ID) based positioning, the position is determined through the
cellular system your phone is currently connected to.
To save on data costs, you can deactivate A-GPS, Wi-Fi, and network (cell ID) based
positioning in your phone positioning settings, but calculating your location may take
much longer, the location can be more inaccurate, and the GPS receiver can lose the
location more frequently.
The availability and quality of GPS signals may be affected by your location, satellite
positions, buildings, natural obstacles, weather conditions, and adjustments to GPS
satellites made by the United States government. GPS signals may not be available
inside buildings or underground.
Do not use GPS for precise location measurement, and never rely solely on the
location information provided by GPS and cellular networks.
The trip meter may not be accurate, depending on the availability and quality of your
GPS connection.
Note: Using Wi-Fi may be restricted in some countries. For example, in France, you
are only allowed to use Wi-Fi indoors. For more information, contact your local
authorities.
Depending on the available positioning methods, the accuracy of positioning may
vary from a few yards to several miles.
Deactivate positioning methods
Assisted GPS (A-GPS), Wi-Fi, and network (cell ID) positioning help your phone
determine your current location more quickly and accurately. To save on data costs,
especially when abroad, you can deactivate one or several of the services.
Select > Settings .
Select Application settings > Positioning > Positioning methods and the positioning
method to deactivate.
The Assisted GPS (A-GPS) network service retrieves location information using the
cellular network, and assists GPS in calculating your current location.
Your phone is preconfigured to use the Nokia A-GPS service, if no service provider-
specific A-GPS settings are available. The assistance data is retrieved from the Nokia
A-GPS service server only when needed.
You must have a mobile data internet access point defined in your phone to retrieve
assistance data.
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