Sony Ericsson Mugua

Find "Restrict calls"

Press the Navigation key.

Find "Restrict calls"

Scroll to Settings and press the Navigation key.

Find "Restrict calls"

Press Navigation key right to find Calls.

Find "Restrict calls"

Scroll to Manage calls and press the Navigation key.

Find "Restrict calls"

Scroll to Restrict calls and press the Navigation key.

Select barring option

Highlight one of the following options:
All outgoing

Select barring option

Outgoing international

Select barring option

Outgoing international roaming

Select barring option

All incoming

Select barring option

Incoming when roaming

Select barring option

Press the Navigation key.

Select setting

Scroll to Activate and press the Navigation key.

Select setting

Key in your barring password (default is 1919) and press the Navigation key.
After a moment, you receive a barring status.

Exit

Press Disconnect to return to standby mode.