Samsung SCH N300 User Manual page 29

Home only
roam. If your home system is not available
then your call will not be connected, and
the
some service areas, an operator may come
on-line and ask you how you would prefer
to pay for the call.
Consult your Service Provider if you
Note:
have any questions about these options.
With this setting, you cannot
No service icon displays. In
Roaming 29