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114 9. Tools
establish a view of a wide area of open sky, such as in
underground locations, inside or between buildings, or
in dense tree cover), the GPS feature of your phone
WILL NOT WORK.
Walking or driving very slowly may also substantially
reduce GPS performance.
Making an Emergency Call
ᮣ Dial 911 and press ` to be connected to an
emergency response center. If you are on an active
call, you must end it before calling 911.
When you make an emergency 911 call, the GPS
feature of your phone begins to calculate your
approximate location. Even where your phone has
good access to sufficient GPS satellite signals and
network assist data, it may take 30 seconds or more to
determine the approximate location. This time will
increase where there is reduced access to satellite
signals. When your approximate location is
determined, it is made available to the appropriate
emergency response center.
In some cases, your local 911 emergency response
center may not be equipped to receive GPS location
information. For this reason, and because the GPS
location information reported is only approximate or
may not be available in your location, always report
your location to the 911 operator you speak to when
making an emergency call, if able, just as you would
when using a phone without GPS capabilities.
Viewing Your Approximate Location
ᮣ Press / > Tools > GPS > Position.
This displays the following information about the last
time your location was calculated:
ⅷ The time (as Greenwich Mean Time) and date that
the location was last calculated.
ⅷ The approximate location, expressed as latitude and
longitude.
ⅷ The estimated accuracy of the calculated location.
ⅷ The number of satellites used to calculate the
location. In general, more satellites make for better
accuracy.
Note: If you are concerned about whether your local 911
emergency response center is equipped to receive
GPS location information, contact your local authorities.