Section 12: Health and Safety Information 155Product PerformanceSection 12• Switch your phone off before boarding an aircraft. The use ofwireless phone in aircraft is illegal and may be dangerous tothe aircraft's operation.• Failure to observe these instructions may lead to thesuspension or denial of telephone services to the offender, orlegal action, or both.Product PerformanceGetting the Most Out of Your Signal ReceptionThe quality of each call you make or receive dependson the signal strength in your area. Your phone informsyou of the current signal strength by displaying anumber of bars next to the signal strength icon. Themore bars displayed, the stronger the signal.If you're inside a building, being near a window maygive you better reception.Understanding the Power Save FeatureIf your phone is unable to find a signal after 15 minutesof searching, a Power Save feature is automaticallyactivated. If your phone is active, it periodicallyrechecks service availability or you can check it yourselfby pressing any key.Anytime the Power Save feature is activated, a messagedisplays on the screen. When a signal is found, yourphone returns to standby mode.Understanding How Your Phone OperatesYour phone is basically a radio transmitter and receiver.When it's turned on, it receives and transmits radiofrequency (RF) signals. When you use your phone, thesystem handling your call controls the power level.