Go back to 642-415 - UCAD - Unified Communications Architecture and Design Exam

Question :-

Jake's Brakes is using an H.225 gatekeeper-controlled trunk between a Cisco Unified Communications Manager cluster and a gateway. When designing the security component for the Cisco Unified Communications Manager clusters, what two things can happen if you use a firewall between a Cisco Unified Communications Manager cluster and the voice and data VU\Ns? (Choose two.)
clipping of the voice stream
call setup failure
one-way audio
choppy audio
echo

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