User Guide

Grandstream Networks, Inc. HT-502 User Manual Page 19 of 31
Firmware 1.0.0.29 Last Updated: 01/2007
TABLE 9: HT–502 ADVANCED CONFIGURATION PAGE DEFINITIONS
Admin Password
This contains the password to access the Advanced Web Configuration page.
This field is case sensitive.
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.
Keep-alive interval
This parameter specifies how often the HT–502 sends a blank UDP packet to
the SIP server in order to keep the “hole” on the NAT open. Default is 20
seconds. Minimum value is 20 seconds.
Firmware Upgrade
and Provisioning
Enables HT–502 to download firmware or configuration file through either the
TFTP or HTTP server.
Via TFTP Server
This is the IP address of the configured TFTP server. If selected and it is non-
zero or not blank, the HT–502 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 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: Please do NOT interrupt the TFTP upgrade process (especially the
power supply) as this will damage the device. Depending on the network
environment this process can take up to 15 or 20 minutes.
Via HTTP Server
The URL for the HTTP server used for firmware upgrade and configuration via
HTTP.
For example, ttp://provisioning.mycompany.com:6688/Grandstream/1.0.0.36
“:6688” is the specific TCP port where the HTTP server is listening; it can be
omitted if using default port 80.
Note: If Auto Upgrade is set to No, HT–502 will only do HTTP download once
at boot up.
Firmware Server Path
IP address or domain name of firmware server.
Config Server Path
IP address or domain name of configuration server.
Firmware File Prefix
Default is blank. If configured, HT–502 will request firmware file with the prefix.
This setting is useful for ITSPs. End user should keep it blank.
Firmware File Postfix
Default is blank. End user should keep it blank.
Config File Prefix
Default is blank. End user should keep it blank.
Config File Postfix
Default is blank. End user should keep it blank.
Automatic Upgrade
Default is “NO”.
When set to No, HT–502 will only do upgrade once at boot up. “Check every
day “, ” Check every week”, “Always check for New Firmware at Boot up.” “
Check New Firmware only when F/W pre/suffix changes”