Refer to the Scenario: IT-FAC.
You are proposing that the customer migrate to SIP trunks and install an Session Border Controller for Enterprise (SBCE). Another Sales Engineer asks you why terminating SIP trunks directly on the IP Office™ and using the built-in firewall is not a best practice.
What is the reason for using the SBCE to terminate SIP trunks?
A . It provides NAT Traversal not available with direct termination.
B . It stops attacks and hacks before entering the private network.
C . It provides VPNIess remote worker functionality for 1600 endpoints.
D . It allows registration and authentication to be done in the core of the network.
Answer: A
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