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Question :-

Ajax Auto Components and Jake's Brakes have merged. Their two Cisco Unified Communications Manager systems have been connected by a gatekeeper-controlled intercluster trunk. To dial internally they both use an access code with a two-digit site code followed by a four-digit extension. How should the dial plan be designed for calls dialed from Ajax to a DN at Jake's?
Use a fully qualified E.164 address and send it to the gateway for resolution.
Send the two-digit site code and four-digit extension to the gatekeeper for resolution.
Use a different access code than used for on-net dialing and create a translation pattern to reach the DN at Jake's.
Deploy a new route group that use E.164 addresses and the IP WAN as the primary path and the PSTN if the IP WAN is busy.

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