Two groups of users within the same dial plan need different features enabled; the first group requires access to voice preview, whereas the second group must not have voice preview enabled.
How should you accomplish this?
A. Create a new UM dial plan with voice preview disabled. Edit the dial plan settings for the second group of users and assign them to the new UM dial plan.
Disable voice preview within the dial plan.
B. Create a new UM mailbox policy with voice preview disabled. Assign the new UM mailbox policy to a new UM dial plan, and update the UM dial plan for each user in the second group.
C. Create a new UM mailbox policy with voice preview disabled within the original UM dial plan. Update the UM mailbox policy for the second group of users.
D. Create a new UM dial plan with voice preview disabled. Disable Unified Messaging for the second group of users and re-enable UM with the new dial plan.
