ArtDio IPF-3000 - Manual (Page 15)

Quick Installation Guide
IPF-3000
-11-
z Once “forward on no-answer” feature is enabled, if you do not answer the
incoming call before the timer expires, it will be forwarded to the forwarding
number you previously configured. If you have not configured the forwarding
number, the peer will be replied as “no answer” and recorded as a missed call.
3. Do Not Disturb (DND)
z Press【DND】function key to toggle this feature: if the red LED is on, this feature
is enabled; otherwise it is disabled.
z When this feature is on, all incoming calls will be silently (no ringing tone will
ever be heard) forwarded to the forwarding number you previously configured. If
you have not configured the forwarding number, the peer will be replied as ”480
Temporarily unavailable” and recorded as a missed call.