LG MM-535 Owner's Manual page 65

Your phone has two ways of alerting you when you are roaming off
the Sprint Nationwide PCS Network: the onscreen roaming icon and
Call Guard. Call Guard makes it easy to manage your roaming charges
by requiring an extra step before you can place or answer a roaming
call. (This additional step is not required when you make or receive
calls while on the Sprint Nationwide PCS Network.)
Press
Select
Select
Select
Highlight
From standby mode, dial 1 + area code + the seven-digit number
and press
list, Call History, or Messaging.)
Select
Press
charges will apply.)
Select
(left softkey ) to access the main menu.
( ).
( ).
( ).
or and press
. (You can also initiate a call from the Contacts
.
. (A message will appear notifying you that roaming
.
.