What are two methods to prevent this forwarded call?

A user forwards a corporate number to an international number.

What are two methods to prevent this forwarded call? (Choose two.)
A . Configure all forced code on all router.
B . Block international dial patterns in the SIP trunk CS
D . Configure a Forced Authorization Code on the international router pattern.
E . Set the call Classification to OnNet for the international route pattern.
F . Set call forward All CSS to restrict international dial patterns.

View Answer

Answer: C,E