Implementing Cisco Advanced Call Control and Mobility Services (CLACCM) — Question 19

Which action is correct with respect to toll fraud prevention configuration in the Cisco Unified Communications Manager Express?

Answer options

• A. Configure Direct Inward Dial for Incoming ISDN Calls with overlap dialing.
• B. Configure IP Address Trusted Authentication for Incoming VoIP Calls.
• C. Configure the command no ip address trusted authenticate under "voice service voip".
• D. Enable Secondary Dial tone on Analog and Digital FXO Ports.

Correct answer: B

Explanation

Option B is correct because configuring IP Address Trusted Authentication helps ensure that only legitimate VoIP calls are accepted, reducing the risk of toll fraud. Options A and D do not directly address toll fraud prevention, while option C would disable a crucial security feature that helps protect against unauthorized access.