Registering With The Network - Blackberry Handheld Installation And User Manual

46 Start sending email — Registering with the network
You will notice that the TURN WIRELESS ON icon was an
antenna, but when you select the icon, the function name changes to
TURN WIRELESS OFF and the icon changes to an airplane. The
airplane icon is a reminder to turn off your handheld's radio when
on an airplane, in a hospital, or any place where it may interfere
with other radio transmissions and frequencies. The icon will
change depending on whether the wireless radio is on or off.
Note
There should be two messages in the Messages screen when you
first receive your handheld to introduce you to your handheld and
some of its basic features.

Registering with the network

After you turn on the wireless radio, a Registration message should
arrive. In the rare case that the Registration message does not arrive,
check the Home screen to ensure you are in coverage. (You are in
coverage if you have one or more bars beside the coverage indicator
Installation and User's Guide
You should turn off your handheld's radio if you are going to
be out of coverage for an extended period of time. Turning
off the radio will greatly improve battery life. See page 165
for more information on saving battery life.