Samsung Galaxy S Plus

Find "Call barring"

Press Applications.

Find "Call barring"

Press Settings.

Find "Call barring"

Press Call settings.

Find "Call barring"

Press Voice call.

Find "Call barring"

Press Call barring.

Select barring option

Press one of the following options:
All outgoing calls

Select barring option

Int'l calls

Select barring option

Int'l calls except home

Select barring option

All incoming calls

Select barring option

Incoming when roaming

Select setting

Key in your barring password (default is 0000).
Press OK.
A request to turn on the setting is sent to the network.
The action is confirmed on the display.

Exit

Press the Home key to return to standby mode.