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…

Applying voice translation-rule 3 to dial-peer 11 voip might be incorrect if dial-peer 11 is not the relevant inbound dial-peer for calls to 2221 or if the rule is not intended for that specific dial-peer.

Changing the destination-pattern for dial-peer voice 10 to 2...$ might be a solution, but it directly changes the matching logic of the dial-peer; if voice translation-rule 3 already exists and is designed for the issue, applying it to the correct dial-peer is more targeted.

In Cisco CUBE, voice translation-rules are frequently applied to inbound dial-peers (e.g., dial-peer voice 10 if it's the inbound peer for calls destined to 2221) to modify the called number before routing. If an incoming call for 2221 fails to ring, it often indicates that the called number is not matching an outbound dial-peer or a UCM route pattern correctly, and voice translation-rule 3 likely contains the logic to normalize or transform the incoming number (e.g., adding/removing digits) so that it can be successfully routed to extension 2221, possibly via a SIP trunk to UCM.

Replacing voice translation-rule 3 with voice translation-rule 1 implies an entirely different rule set, which may or may not resolve the issue and could introduce new problems if rule 3 was partially correct or intended for other scenarios.