Which procedure allows the leading digits to be stripped as soon as they arrive at the H.323 voice gateway?

Customer requirements dictate that local calls from area code 408 display the ANI as a 7-digit number.

Which procedure allows the leading digits to be stripped as soon as they arrive at the H.323 voice gateway?
A . Set up a voice translation rule, apply the translation rule to a translation profile, and apply the translation profile to the dial peer in the inbound direction.
B . Set up a voice translation profile, apply the translation profile to a translation rule, and apply the translation rule to the dial peer in the outbound direction.
C . Set up a voice translation rule, apply the translation rule to a translation profile, and apply the translation profile to the dial peer in the outbound direction.
D . Set up a voice translation profile, apply the translation profile to a translation rule, and apply the translation rule to the dial peer in the inbound direction.

Answer: A