Samsung SCH-A570NBUXAR - Manual (Page 174)

Sect
ion 12
174
Understanding How Your Phone Operates
Your phone is basically a radio transmitter and receiver.
When it's turned on, it receives and transmits radio
frequency (RF) signals. When you use your phone, the
system handling your call controls the power level.
This power can range from 0.006 watts to 0.2 watts in
digital mode.
Maintaining Your Phone's Peak Performance
For the best care of your phone, only authorized
personnel should service your phone and accessories.
Faulty service may void the warranty.
There are several simple guidelines to operating your
phone properly and maintaining safe, satisfactory
service.
• Please note obstructing the internal antenna could inhibit call
performance.
• Hold the phone with the antenna raised, fully-extended and over
your shoulder.
• Try not to hold, bend or twist the phone's antenna.
• Don't use the phone if the antenna is damaged.
• Speak directly into the phone's receiver.
• Avoid exposing your phone and accessories to rain or liquid
spills. If your phone does get wet, immediately turn the power
off and remove the battery. If it is inoperable, call Customer
Care for service.
Availability of Various Features/Ring Tones
Many services and features are network dependent and
may require additional subscription and/or usage