35
Positioning
■ Add a ringing tone
You can set a ringing tone or a video ringing tone for each contact and group. To
add a ringing tone to a contact, select > Contacts, and open the contact. Select
Options > Ringing tone and the ringing tone. To add a ringing tone to a group,
scroll right to the groups list, and scroll to a contact group. Select Options >
Ringing tone and the ringing tone for the group. To remove the personal or group
ringing tone, select Default tone as the ringing tone.
7. Positioning
You can use applications such as Maps and GPS data to find out your location, or
measure distances and coordinates. These applications require a GPS connection.
■ About GPS
The Global Positioning System (GPS) is a worldwide radio navigation system that
includes 24 satellites and their ground stations that monitor the operation of the
satellites.
Your device has an internal GPS receiver.
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. The GPS receiver should only be used outdoors to allow
reception of GPS signals.
Any 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.
■ Assisted GPS
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.
Your network operator may charge you for this connection according to your
network subscription. Contact your service provider for the correct internet access
point and charges related to the service.