Free Cisco 300-815 Actual Exam Questions | CLACCM Actual Exam Questions - Question 4 Discussion

C. Disabling trusted authentication with the command no ip address trusted authenticate under voice service voip actually helps prevent unauthorized calls by not automatically trusting incoming IP addresses. That stops some types of toll fraud where calls come from untrusted sources. The other options either don’t directly address toll fraud or focus on features that are less relevant for CME specifically.

I think B makes more sense here. Setting IP Address Trusted Authentication forces verification on incoming VoIP calls, which is a solid way to block unauthorized toll calls. Not just about overlap dialing or dial tone. B

It’s D for me. Enabling Secondary Dial tone on FXO ports helps catch unauthorized calls by prompting the caller before the call actually goes through, which can stop toll fraud early. The other options are more about general configuration or authentication but don’t directly act as a fraud prevention step like this one does. Seems like the best practical action to block unauthorized toll calls.

Probably C, since disabling trusted authenticate limits unauthorized call acceptance.

It’s C. Disabling IP address trusted authenticate with that command helps prevent toll fraud by not trusting all incoming calls blindly, which makes more sense than B for fraud prevention.

Maybe B, but the question wording kinda threw me off.