Witch call control product or feature allows calls to e…

Witch call control product or feature allows calls to endpoints that are outside of the firewall?
Select exactly 1 answer(s) from the following:

Witch call control product or feature allows calls to endpoints that are outside of the firewall?
Select exactly 1 answer(s) from the following:

A.
CiscoTelePresenceVCS Expressway

B.
E.164 number and DNS zones

C.
Call policy

D.
nterworking



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