Samsung SGH-P207ZKACIN - Manual (Page 128)

Sect
ion 8
124
If you select Automatic, you are connected to the first
available network when roaming.
If you select Manual, go to step 3.
3. Select the network you want. The phone will scan for
that network and you will be connected.
Caller ID
You can prevent your phone number from being
displayed on the phone of the person you are calling.
Note: Some networks do not allow you to change this setting.
The following options are available:
Default : the default setting provided by the network is
used.
Hide Number : you number does not display on the other
person’s phone.
Send Number : your number is sent each time you make
a call.
Closed User Group (SIM Dependent)
This network service allows incoming and outgoing calls
to be restricted to a selected user group. you can create up
to 10 user groups.
For details about how to create and use a closed user
group, contact your service provider.
Example: A company lends SIM cards to its employees and wants to
restrict outgoing calls to members of the same team.