Ovislink OV804WV User Manual page 198

Advanced Feature Setting

Forwarding number
Set the number to forward a call. This number can also be
set through dialing *74<NUM># on the phone key pad.

Call forwarding when busy
Enable Call forwarding when busy feature. When this
check box is checked, incoming calls are forwarded when
the specific line is busy. It has the same effect as dialing
*72 on the phone pad.

Forwarding all calls
Enable Forwarding all calls feature. When this check box
is checked, incoming calls are forwarded unconditionally.
Dialing *73 can also accomplish this aim.

Call forwarding if no answer
Enable Call forwarding if no answer. When this check
box is checked, incoming calls are forwarded when it is not
answered in 18s. Dialing *71 also makes it.

Call waiting
Enable Call waiting feature in this line.
Enable MWI subscription
Figure 156 SIP Advanced Setting
194