Table 9: advanced settings – Grandstream GXW400x User Manual User Manual

Page 37

FIRMWARE VERSION 1.0.14.1 GXW400X USER MANUAL Page 35 of 60

TABLE 9: ADVANCED SETTINGS

Admin Password

Administrator password. Only the administrator can configure the “Advanced

ttings” page. Password field is purposely left blank for security reasons after

clicking update and saved. The maximum password length is 25 characters.

Layer 3 QoS

This field defines the layer 3 QoS parameter which can be the value used for IP

Precedence or Diff-Serv or MPLS. Default value is 48.

Layer 2 QoS

Value used for layer 2 VLAN tag. Default setting is blank.

STUN Server

IP address or Domain name of the STUN server.

STUN server assists devices behind a NAT firewall or a router to set up calls via

VoIP.

STUN server is often provided by the VoIP service provider or a public STUN server

can be used. For a sample list of public free STUN servers please refer to:

Keep-alive interval

This parameter specifies the number of seconds after which a new blank UDP

packet will be sent out to the proxy/server port in order to have the port stay open

and the device remain reachable. Default is 20 seconds.

Use STUN to detect

network connectivity

Use STUN keep-alive to detect WAN side network problems. If keep-alive request

does

not yield any response for configured number of times, the device will restart the

TCP/IP

stack. If the STUN server does not respond when the device boots up, the

feature is

disabled.

Firmware Upgrade &

Provisioning

Enables GXW400X to download firmware or configuration file using either the TFTP

or HTTP/S protocols.

Via TFTP Server

This is the IP address of the configured TFTP server. If selected and it is non-zero

or not blank, the GXW400X retrieves the new configuration file or new code image

from the specified TFTP server at boot time. After 5 attempts, the system will

timeout and then it will start the boot process using the existing code image in the

Flash memory. If a TFTP server is configured and a new code image is retrieved,

the new downloaded image is saved into the Flash memory.

Note:

Do NOT interrupt the firmware upgrade process (especially the power

supply) as this will damage the device

. Depending on the network environment

this process may take up to 15 or 20 minutes.