Samsung E635 User Manual (ENGLISH) - Page 167
Understanding How Your Phone Operates, Maintaining Your Phone's Peak Performance
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Section 13 Availability of Various Features/Ring Tones 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. • 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 charges. Not all features are available for purchase or use Section 13: Health and Safety Information 163