All ARS short codes use one of the Dial short code features. The exception is the Barred short code feature. This can be selected for ARS short codes that match dialing that is not allowed.

In the example below, any user dialing an international number will be routed to the Barred short code. This prevents the dialing of external numbers prefixed with 0.

To restrict a user from making any outgoing external calls, use the user's Outgoing Call Bar option.