Blackberry RIM 857 Wireless Handheld Installation & User Manual page 32

32 Get to know your handheld — Description of keys
Icon
/
Turn
Wireless
On/Turn
Wireless Off
Power Off
Function menus
Menus provide a list of options for the current function. You can
open a function screen's menu by clicking the trackwheel; the menu
appears on top and covers approximately half of the screen's width.
Installation and User's Guide
Turn the handheld's radio off when it may
interfere with other radio communications, such
as during flight. You will not be able to send or
receive messages until you turn the radio on
again.
Turn off the handheld whenever you prefer not
to receive email messages or when you wish to
conserve battery power. All queued messages
will be delivered to your handheld once you
turn it back on.
Address Book function menu
Description