Incoming Call Barring - Draytek VIGOR3300V+ User Manual

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4.7.9 Incoming Call Barring

This feature is used to bar incoming VoIP calls from the Internet. Barring classes can be
specified to allow or deny incoming calls. There are five barring classes on the device. The
default setting is Allow all incoming calls.
S e t
S e t
This page allows you to choose a barring class, match method and set a range for speed dial
entries for the incoming call barring.
Barring Class
Match Method
Vigor3300V+ Series User's Guide
STUN Server Port - Type the port number of the STUN
server.
Disable symmetric RTP and T.38 – Click this button to
make RTP and T.38 being not symmetrical.
Enable symmetric RTP and T.38 - Click this button to make
RTP and T.38 being symmetrical. When Vigor3300 detects
the IP address of the receiving packets differing with the
address informed by remote end, Vigor3300 will change the
IP address automatically according to the real IP address of
the packets to ensure the remote receiver can get the packets.
There are five options for incoming calls from remote ends.
Choose either one of them to set the barring class.
Allow all incoming calls – All incoming calls from remote
ends are accepted by this router.
Allow only calls from allow list – Only the calls listed in the
Allow List page will be accepted by this router.
Allow only calls from speed dial entries – Only the calls
listed in the speed dial entries will be accepted by this router.
Deny only calls from deny list – The calls listed on Deny
List page will not be accepted by this router. And others calls
are accepted.
Deny all incoming calls – All incoming calls from remote
ends are not accepted by this router.
Name - Enable or Disable this function to take value of
Speed Dial Phone Number to be checked.
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