palmOne TREOTM TreoTM 650, Using Manual

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28 :: Opening applications
Opening applications
There are three application buttons on the front of the Treo 650 smartphone. The
fourth button turns your phone on and off, wakes up the screen, and controls the
keyguard. Each application button can be used to open two applications. To access a
button’s primary application, simply press the button. To access a button’s secondary
application, press Option , and then press the application button.
You can also customize
the buttons yourself; see
“Setting Buttons
Preferences” on page 152
for details.
A Phone/Send
B. Calendar
C. Messaging
D. Power/End
A
C
B
D