Implementing Cisco IP Telephony and Video Part 2 (CIPTV2, legacy) — Question 5

Which action configures PSTN backup for calls that are rejected by the gatekeeper CAC?

Answer options

• A. Configure AAR in Cisco Unified Communications Manager.
• B. Configure CFUR in Cisco Unified Communications Manager.
• C. Configure a route pattern, a route list, and route groups to a trunk and a gateway in Cisco Unified Communications Manager.
• D. Configure a route pattern to a gateway in Cisco Unified Communications Manager.

Correct answer: C

Explanation

The correct answer, C, details how to establish a backup route using a combination of a route pattern, route list, and route groups, which is necessary for handling calls when CAC is not able to proceed. Options A and B relate to different call routing features, AAR and CFUR, which do not specifically address PSTN backup. Option D sets up only a direct route pattern to a gateway, which is insufficient for comprehensive PSTN backup configuration.