Draytek VIGOR2820 series, User Manual, Page: 164 / 269

Vigor2820 Series User’s Guide 156
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.
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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.