Which statement is true when H.323 and SIP interworking is set to on in the Cisco
TelePresence VCS?

A.
The Cisco TelePresence VCS will act as a SIP-to-H.323 gateway regardless of whether

one of the endpoints is locally registered.

B.
The Cisco TelePresence VCS will act as a SIP-to-H.323 gateway only if one of the
endpoints is locally registered.

C.
The Cisco TelePresence VCS will not act as a SIP-to-H.323 gateway.

D.
The Cisco TelePresence VCS will permit all traffic from any H.323 or SIP endpoint that is
registered locally.