Managing Zones, Neighbors and Alternates

TANDBERG VIDEO COMMUNICATION SERVER ADMINISTRATOR GUIDE

There must

be an entry

in the local VCS’s Authentication database for this username. See Authentication for more information.

Authentication username

If the traversal client is a VCS, this is

its Authentication Username. If the traversal client is a gatekeeper, this is its System Name.

Configuring Traversal Server Zones

SIP mode

Determines whether SIP calls will be allowed to and from this zone.

SIP port

Specifies the port on the local VCS Border Controller to be used for SIP calls to and from the traversal client.

H.323 mode

Determines whether H.323 calls will be allowed to and from the traversal client.

H.323 protocol

Determines the protocol (Assent or H.460.18) to be used to traverse the firewall/NAT.

(See Firewall Traversal Protocols for more information.)

H.323 port

Specifies the port on the local VCS to be used for H.323 calls to and from the traversal client.

H.460.19 demultiplexing Mode

Determines whether or not the same two ports can be used for media by two or more calls.

On: all calls will use the same two ports.

Off: each call will use a separate pair of ports.

For full details on how traversal client

zones and traversal server zones work together to achieve firewall traversal,

see Firewall Traversal.

TCP keep alive interval

Sets the interval (in seconds) with which the traversal client will send a TCP probe to the VCS once a call is established, in order to maintain the firewall’s NAT bindings.

TCP retry count

Sets the number of times the client will attempt to send a TCP probe to the VCS Border Controller during call setup.

TCP retry interval

Sets the frequency (in seconds ) with which the traversal client will send a TCP probe to the VCS during call setup.

SIP transport

Determines which transport type will be used for SIP calls to and from the traversal client.

UDP retry interval

Sets the frequency (in seconds) with which the client will send a UDP probe to the traversal server if a keep alive confirmation has not been received.

UDP retry count

Sets the number of times the client will attempt to send a UDP probe to the VCS Border Controller during call setup.

UDP keep alive interval

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

The default UDP and TCP probe retry

intervals are suitable for most situations. However, if you experience

problems with NAT bindings timing out, they may need to be changed.

Getting System

Introduction Started Overview

D 14049.01

07.2007

System

H.323 & SIP

Registration

Zones and

Call

Firewall

Configuration

Configuration

Control

Neighbors

Processing

Traversal

56

Bandwidth

Control Maintenance Appendices

Page 56
Image 56
TANDBERG D14049.01 manual Configuring Traversal Server Zones