An engineer has temporarily disabled toll fraud prevention for SIP line calls on a Cisco CME12.6x and must enforce security and toll fraud prevention for the SIP line side on Cisco Unified CME. Which

The correct answer is A. voice service voip ip address trusted list. On Cisco Unified CME, toll fraud prevention for SIP is managed by controlling which IP addresses are trusted to send SIP signaling. The command 'voice service voip' enters the global VoIP configuration mode, and within it, 'ip address trusted list' is used to define and enable th

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Question

An engineer has temporarily disabled toll fraud prevention for SIP line calls on a Cisco CME12.6x and must enforce security and toll fraud prevention for the SIP line side on Cisco Unified CME. Which configuration must be used to start this process?

Options

Avoice service voip ip address trusted list
Bvoice service voip enablo ip address trust authentication
Cvoice service voip enable ip address trust list
Dvoice service voip ip address trusted authenticate

How the community answered

(49 responses)

A
90% (44)
B
2% (1)
C
2% (1)
D
6% (3)

Explanation

On Cisco Unified CME, toll fraud prevention for SIP is managed by controlling which IP addresses are trusted to send SIP signaling. The command 'voice service voip' enters the global VoIP configuration mode, and within it, 'ip address trusted list' is used to define and enable the trusted IP address list. This is the correct and valid IOS syntax for re-enabling toll fraud protection on the SIP line side. Option B and C use non-existent keywords ('enablo', 'enable', 'trust list'), and Option D ('trusted authenticate') is not a valid Cisco IOS command construct for this feature.

Topics

#CME Security#Toll Fraud Prevention#SIP Line Configuration#Trusted IP List

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