On a MICS 6.1 I have 6 phones which have 3 lines on each that appear and ring. We have FNA set up on each phone to the VM DN and after 4 rings the EXTENSION calls roll to the individual mail box. This works fine. The problem is that now after 4 rings the LINES are also rolling to one of the individual mailboxes. Is there anyway for the lines NOT to FNA to the mailbox?