Nokia 6720 classic

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6.  Positioning
About GPS 
The Global Positioning System (GPS) is operated by the 
government of the United States, which is solely responsible 
for its accuracy and maintenance. The accuracy of location 
data can be affected by adjustments to GPS satellites made 
by the United States government and is subject to change 
with the United States Department of Defense civil GPS policy 
and the Federal Radionavigation Plan. Accuracy can also be 
affected by poor satellite geometry. Availability and quality
of GPS signals may be affected by your location, buildings,
natural obstacles, and weather conditions. GPS signals may 
not be available inside buildings or underground and may be 
impaired by materials such as concrete and metal. 
GPS should not be used for precise location measurement, 
and you should never rely solely on location data from the 
GPS receiver and cellular radio networks for positioning or 
navigation. 
The trip meter has limited accuracy, and rounding errors may 
occur. Accuracy can also be affected by availability and quality 
of GPS signals. 
The coordinates in the GPS are expressed using the 
international WGS-84 coordinate system. The availability of 
the coordinates may vary by region. 
Positioning 
Assisted GPS (A-GPS) 
Your device also supports assisted GPS (A-GPS).
A-GPS requires network support.
Assisted GPS (A-GPS) is used to retrieve assistance data over
a packet data connection, which assists in calculating the
coordinates of your current location when your device is
receiving signals from satellites.
When you activate A-GPS, your device receives useful satellite
information from an assistance data server over the cellular
network. With the help of assisted data, your device can
obtain the GPS position faster.
Your device 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.
To disable the A-GPS service, select
 > 
Settings > 
Connectivity > GPS data and Options > Positioning 
settings > Positioning methods > Assisted GPS > 
Options > Disable
You must have an internet access point defined in the device 
to retrieve assistance data from the Nokia A-GPS service over 
a packet data connection. The access point for A-GPS can be 
defined in positioning settings. Only a packet data internet 
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