Refer to the exhibit. An engineer deploys this Cisco Unified Border Element configuration, but the phone at extension 2221 fails to ring. These configurations were performed already in Cisco UCM:
• phone configuration and registration
• SIP trunk configuration
• translation pattern configuration
Which action resolves the issue?
To resolve the issue where the phone at extension 2221 fails to ring, the appropriate step is to apply voice translation rule 3 to dial peer 11 voip. This translation rule is configured to strip out the '555-555' prefix and leave the extension number (2221). Since dial peer 11 has the 'incoming called-number' directive that matches the incoming call number, this rule needs to be applied to dial peer 11 to ensure the correct number is matched and routed appropriately to dial peer 10, which handles the destination pattern matching. Therefore, applying the translation rule to dial peer 11 properly handles the incoming number transformation and resolves the issue.
I think answer A "Apply voice translation-rule 3 to dial-peer 11 voip" is correct. vt-rule3 will strip called prefixed 555-555 and does keep 2221. Remaining 2221 does then match destination pattern ....$ of dp voice 10 voip => to CUCM
A is presumably the correct answer, but you can't actually apply a translation-rule to a dial-peer. You have to apply a translation-PROFILE, which then references the translation-rule. i.e. it needs "translation-profile incoming profile1" added to dial-peer 11. Presumably that's what they mean with A here.
A is correct,
the correct answer is C