Draytek Vigor2110 Series User Manual page 191

For Block Unknown Domain – this function can block incoming calls (through Phone port)
from unrecognized domain that is not specified in SIP accounts. Such control also can be done
based on preconfigured schedules.
For Block IP Address – this function can block incoming calls (through Phone port) coming
from IP address. Such control also can be done based on preconfigured schedules.
R e g i o n a l
R e g i o n a l
This page allows you to process incoming or outgoing phone calls by regional. Default values
(common used in most areas) will be shown on this web page. You can change the number
based on the region that the router is placed.
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Vigor2110 Series User's Guide