DN masks primarily affect which number?

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Multiple Choice

DN masks primarily affect which number?

Explanation:
DN masks determine how many digits of a directory number the system uses for routing and matching. This means the primary effect is on the length of the DN that CUCM (and related gateways) considers when processing a call. It doesn’t change who is calling or who is being called; it simply defines how many digits from the DN are used in dial plan matching and normalization. So the mask mainly affects the DN length.

DN masks determine how many digits of a directory number the system uses for routing and matching. This means the primary effect is on the length of the DN that CUCM (and related gateways) considers when processing a call. It doesn’t change who is calling or who is being called; it simply defines how many digits from the DN are used in dial plan matching and normalization. So the mask mainly affects the DN length.

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