Samsung A900M Owner's Manual page 91

Restriction
Allows you to restrict outgoing call options by selecting one
of the following options:
Allow all to allow outgoing calls to be made (no
restrictions).
Contacts Only to allow outgoing calls to only those
numbers saved in the Contacts list.
Special# Only to allow outgoing calls to only the numbers
set up in the special numbers list. (See "Using Special
Numbers" on page 75.)
To access call restriction:
1.
Select Menu > Settings > Others > Call Setup > Restriction.
2.
Enter your lock code.
3.
Select Outgoing Call and press
4.
Select Allow all, Contacts Only, or Special# Only and
press
Section 2B: Controlling Your Phone's Settings
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