Samsung SEC-R311ZGAUSC - Manual (Page 33)

Call Functions 30
• Home Only — Your phone is available for normal operation only in the
designated coverage area.
• Automatic — Your Wireless Carrier’s Preferred Roaming List (PRL) of
networks is used to acquire service. If no preferred networks are
found, any digital system is acquired.
Note: For more information, refer to “System Select” on page 111.