Implementing Cisco IP Telephony and Video Part 2 (CIPTV2, legacy) — Question 12

The corporate WAN has been extended to two newly acquired sites and it includes gatekeeper support. Each site has a Cisco CallManager and an H.323 gateway that allows connection to the PSTN. Which connection method is best for these two new customers?

Answer options

• A. H.225 trunk (gatekeeper-controlled)
• B. intercluster trunk (non-gatekeeper controlled)
• C. SIP trunk
• D. intercluster trunk (gatekeeper-controlled)

Correct answer: D

Explanation

The correct answer is D, as using an intercluster trunk that is gatekeeper-controlled provides better management and routing capabilities between the sites with Cisco CallManagers. Option A, while also gatekeeper-controlled, is not suitable for intercluster communication. Options B and C do not leverage gatekeeper support, which is essential in this scenario for efficient call management.