What is the process of digit matching?

46
Cisco 642-447 Exam

A.
Cisco Unified Communications Manager first performs a digit-by-digit analysis, looking for patterns that match the internal directory numbers. If no match is found, the dialed string is matched against the route patterns.

B.
Cisco Unified Communications Manager collects all digits and compares them en bloc for patterns that match the internal directory numbers. If no match is found, the dialed string is matched against the route patterns.

C.
Cisco Unified Communications Manager performs a digit-by-digit analysis, looking for patterns that match the internal directory numbers and ones that match the route patterns simultaneously.

D.
Cisco Unified Communications Manager collects all digits and compares them en bloc for patterns that match the internal directory numbers and ones that match the route patterns simultaneously.

Explanation: