Traversal-enabled H.323 endpoints can
register directly with the VCS Border Controller
and use it for firewall traversal.
To configure the options for these endpoints:

VCS Configuration > Border Controller >
Locally Registered Endpoints

You will be taken to the

Locally Registered

Endpoints

page.

xConfiguration Zones LocalZone

Traversal H323

•

H.323 Assent mode

Determines whether or not H.323 calls using
Assent mode for firewall traversal will be
allowed.

H.460.18 mode

Determines whether or not H.323 calls using
H.460.18/19 mode for firewall traversal will
be allowed.

H.460.19 demux mode

Determines whether the VCS will operate in
Demultiplexing mode for calls from locally
registered endpoints.

: allows use of the same two ports for all

calls.

Off

: Each call will use a separate pair of ports

for media.

H.323 preference

If an endpoint supports both Assent and
H.460.18 protocols, this setting determines
which the VCS uses.

UDP probe retry interval

Sets the frequency (in seconds) with which
locally registered endpoints will send a UDP
probe to the VCS Border Controller.

UDP probe keep alive interval

Sets the interval (in seconds) with which
locally registered endpoints will send a UDP
probe to the VCS once a call is established, in
order to keep the firewall’s NAT bindings open.

UDP probe retry count

Sets the number of times locally registered
endpoints will attempt to send a UDP probe.

TCP probe retry interval

Sets the frequency (in seconds) with which
locally registered endpoints will send a TCP
probe to the VCS.

TCP probe keep alive interval

Sets the interval (in seconds) with which
locally registered endpoints will send a TCP
probe to the VCS once a call is established, in
order to keep the firewall’s NAT bindings open.

TCP probe retry count

Sets the number of times locally registered
endpoints will attempt to send a TCP probe to
the VCS.

Save

Click here to save your settings.

TANDBERG

VIDEO COMMUNICATION SERVER

ADMINISTRATOR GUIDE

Firewall Traversal