GreatCall Jitterbug Manual page 179

U.S. Government that are subject to changes implemented in accordance with
the Department of Defense policy and the 2008 Federal Radio navigation Plan
(FRP). Changes may affect the performance of location-based technology on your
mobile device.
Certain Samsung mobile devices can also use an Assisted Global Positioning
System (AGPS), which obtains information from the cellular network to improve
GPS performance. AGPS uses your wireless service provider's network and
therefore airtime, data charges, and/or additional charges may apply in
accordance with your service plan. Contact your wireless service provider for
details.
Your Location
Location-based information includes information that can be used to
determine the approximate location of a mobile device. Mobile devices which
are connected to a wireless network transmit location-based information.
Additionally, if you use applications that require location-based information
(e.g. driving directions), such applications transmit location-based information.
Health and Safety 169