Which statement is true for an ephone-dn that has no COR applied?
A. Calls can be made from this ephone-dn to all possible numbers from the local router.
B. Calls cannot be made from this ephone-dn.
C. Calls can be made from this ephone-dn only to another ephone-dn on the local router.
D. Calls can be made from this ephone-dn only to external numbers.
