Draytek Vigor2830 Series User Manual page 291

OP Number
Min Len
Max Len
Route
Move UP /Move Down
C a l l B a r r i n g
C a l l B a r r i n g
Call barring is used to block phone calls coming from the one that is not welcomed.
Click any index number to display the dial plan setup page.
The front number you type here is the first part of the
account number that you want to execute special function
(according to the chosen mode) by using the prefix number.
Set the minimal length of the dial number for applying the
prefix number settings. Take the above picture (Prefix
Table Setup web page) as an example, if the dial number is
between 7 and 9, that number can apply the prefix number
settings here.
Set the maximum length of the dial number for applying the
prefix number settings.
Choose the one that you want to enable the prefix number
settings from the saved SIP accounts. Please set up one SIP
account first to make this interface available. This item will
be changed according to the port settings configured in
VoIP>> Phone Settings.
Click the link to move the selected entry up or down.
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Vigor2830 Series User's Guide