Current setup only allows the addition of a new subscriber by importing from Exchange (2003SP2). In the "Type of Subscriber\New Subscriber" drop down, all entries greyed out and non-selectable.
How do I go about adding subscribers who will not have a domain account and Exchange account so they can receive voice mail? Their Exchange server does not run Unity. They are not part of our AD/forest.
Looking for specific documentation and tips if possible.