Not sure how to set up a mailbox for an off-site user that has no in-house telephone. Couln't see how to set this up without using up a port on the phone system. They have a small in-skin voicemail with about 50 mailboxes. The part I don't get is how to call-forward the incoming calls immediately to the mailbox. Not a NEC genius, just took over this system. Thanks for any input!