Which two of these tasks should be completed to enable calls through a firewall? (Choose two)

A.
Create one traversal server zone on the VCS Expressway for any VCS Control that is running a traversal client

B.
Configure the traversal server zone with details of the corresponding zone on the traversal client

C.
Create a traversal server zone on your local VCS Control

D.
Configure VCS with details of the corresponding zone on the traversal server

E.
Create a traversal client zone on your local VCS Control