Implementing Cisco Advanced Call Control and Mobility Services (CLACCM) — Question 140

A customer is using a SIP trunk to route calls to ITSP. To decrease the possibility of downtime, the customer invested in a failover device. How does the customer ensure reachability to ITSP, so that if one device on ITSP fails, the calls will be routed to another device?

Answer options

• A. Enable SIP Option Ping on the SIP profile.
• B. Monitor the link using network management tools, and if it fails, manually change the routing to another working device.
• C. Enable ANAT on the SIP profile.
• D. Enable transmit security status on the SIP security profile.

Correct answer: A

Explanation

The correct answer, A, involves enabling SIP Option Ping, which helps to check the status of the ITSP devices and allows for automatic failover. Option B requires manual intervention, which does not provide the same level of assurance for continuous connectivity. Options C and D do not pertain to failover functionality and do not address the reachability aspect.