18 :: Turning your smartphone on and offTurning your smartphone on andoffYou can use the Palm OS® organizer features of your Treo 650 smartphoneindependently of the wireless features and applications. In other words, the screenand phone are designed to be turned off and on separately.Waking up the screenTo use the Palm OS organizer features when your smartphone is off, you need towake up the screen. You can also turn off your smartphone’s screen without turningoff your smartphone’s wireless features.1. Press Power/End to wake up the screen.2. Briefly press Power/End to turn off the screen.Turning your phone on and offWhen you turn on your phone, it connects to a mobile network so that you can makeand receive phone calls and use other wireless services.1. Press and hold Power/End to turn on your phone. If Sound On is on you’ll heara series of ascending tones. (See “Setting the Ringer switch” on page 184 formore information.) After your phone locates a signal, you can use the phone andInternet features (if supported by the local network).2. Press and hold Power/End again to turn off your phone. If the Ringer switch isset to Sound On, you‘ll hear a series of descending tones. When your phone is off,your Treo smartphone is not connected to any mobile network. You can still use theorganizer and other Palm OS features. This is ideal for airplane flights and formaximizing battery life.The indicator light flashesgreen when your phone ison and you’re inside acoverage area. If you’reoutside a coverage area,the indicator light flashesamber.Your Treo 650 smartphoneincludes a keyboardbacklight for low-lightconditions. The keyboardbacklight activatesautomatically when thescreen turns on. It turns offautomatically when thescreen turns off and whenan active call lasts longerthan a minute.You can also press anyapplication buttons on thefront of your phone to wakeup the screen and godirectly to the applicationlinked to that button.
