When a user dials a Type A SIP phone, how are the digits analyzed by Cisco Unified Communications Manager?

A.
Digits are first checked against the local SIP dial rules and then sent to the Cisco Unified Communications Manager digit-by-digit

B.
Digits are sent to the Cisco Unified Communications Manager digit-by-digit.

C.
Digits are first checked against the local SIP dial rules and then sent to the Cisco Unified
Communications Manager en bloc.