Samsung SGH-C225NBATMB - Manual (Page 100)

Network Services
100
If you select Manual, the phone scans for the available
networks. Go to Step 3.
3. Press the or key until the preferred network is
highlighted and then press the OK soft key.
You are connected to that network.
Caller ID
You can prevent your phone number from being displayed on
the phone of the person being called.
Note: Some networks do not allow the user to change this setting.
The following options are available.
Default: the default setting provided by the network is used.
Hide number: your number is not displayed on the other
person’s phone.
Send number: your number is sent each time you make a call.