A user forwards a corporate number to an international number. What are two methods to prevent this forwarded call? (Choose two.)

'Configure all forced code on all router' is vague and not a standard Cisco CUCM configuration. Forced Authorization Codes (FACs) are configured on route patterns, not generally 'on all router'.

Blocking international dial patterns in the SIP trunk CSS would prevent calls from *using* that specific SIP trunk for international calls, but the call forward itself might still be attempted and fail at the trunk, or it might not prevent the *forwarding attempt* if the user's CSS for forwarding includes international access.

Configuring a Forced Authorization Code (FAC) on the international route pattern requires the user to enter a specific code to complete the call. If the forwarding is automatic, the FAC prompt will prevent the call from completing without manual intervention, thus blocking unauthorized international forwards.

Setting the call Classification to OnNet for an international route pattern is incorrect. International calls are typically OffNet, and this setting would likely cause routing issues or not prevent the call forward as intended.

Setting the Call Forward All (CFA) Calling Search Space (CSS) for the user or device to a CSS that restricts international dial patterns will prevent the call forwarding attempt from matching any international route patterns, effectively blocking the forward. This is a common method to control forwarding permissions.