Health and Safety Information 103message displays on the screen. When a signal is found, your phonereturns to standby mode.Understanding How Your Phone OperatesYour phone is basically a radio transmitter and receiver. When it'sturned on, it receives and transmits radio frequency (RF) signals.When you use your phone, the system handling your call controls thepower level. This power can range from 0.006 watts to 0.2 watts indigital mode.Maintaining Your Phone's Peak PerformanceFor the best care of your phone, only authorized personnel shouldservice your phone and accessories. Faulty service may void thewarranty.There are several simple guidelines to operating your phone properlyand maintaining safe, satisfactory service.• To ensure that the Hearing Aid Compatibility rating for your phone ismaintained, secondary transmitters such as Bluetooth and WLANcomponents must be disabled during a call. For more information, refer to“Turn Bluetooth On/Off” on page 65.• If your phone is equipped with an external antenna, hold the phone with theantenna raised, fully-extended and over your shoulder.• Do not hold, bend or twist the phone's antenna, if applicable.• Do not use the phone if the antenna is damaged.• If your phone is equipped with an internal antenna, obstructing the internalantenna could inhibit call performance.
