Implementing Cisco Collaboration Cloud and Edge Infrastructure (CLCEI) — Question 148

An engineer is configuring Cisco Expressway-E and needs to implement toll fraud prevention. Which configuration meets this requirement?

Answer options

• A. Enable SIP ALG inspection on the network address translation firewall.
• B. Enable and configure local call policy.
• C. Enable and configure the Expressway-E firewall.
• D. Configure the external firewall to block specific IPs.

Correct answer: B

Explanation

The correct answer is B, as enabling and configuring local call policy is specifically designed to prevent toll fraud by controlling call behavior. Options A and C do not directly address toll fraud prevention, while option D involves blocking IPs, which may not effectively prevent fraud originating from legitimate sources.