Draytek VigorPro 5300 User Manual page 164

Click any index number to display the dial plan setup page.
Enable
Call Direction
Barring Type
156
Click this to enable this entry.
Determine the direction for the phone call, IN – incoming call,
OUT-outgoing call, IN & OUT – both incoming and outgoing
calls.
Determine the type of the VoIP phone call, URI/URL or
number.
Specific URI/URL or Specific Number - This field will be
changed based on the type you selected for barring Type.
VigorPro5300 Series User's Guide