ADVANCED CONFIGURATION AND FXS/FXO PORTS PARAMETERS

To login to the Advanced Setting and FXS port configuration pages, administrator password is required.

The default administrator password is “admin”. User can change the administrator password here. The

password is case sensitive and the maximum length is 25 characters.

TABLE 9: HT503 ADVANCED SETTINGS PAGE DEFINITIONS

Admin Password Administrator password. Only the administrator can configure the “Advanced Settings”
page. Password field is purposely blanked for security reason 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 Layer 2 QoS settings. Default setting is blank. VLAN supported equipment is required
when configuring these settings.
STUN Server IP address or Domain name of the STUN server.
Keep-alive interval This parameter specifies how often the HT503 sends a blank UDP packet to the SIP
server in order to keep the NAT “pin hole” open. Default is 20 seconds.
Firmware Upgrade and
Provisioning Enables the HT503 to download firmware or configuration files through either TFTP or
HTTP servers. The default method is HTTP.
Via TFTP Server This is the IP address of the configured TFTP server. If this is configured, the HT503
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: Firmware upgrades may take up to 10 minutes depending on your network
environment. On a LAN it usually takes about 2 minutes. 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, http://provisioning.mycompany.com:6688/Grandstream/1.0.0.6
:6688” is the specific TCP port where the HTTP server is listening; Omit if using
default port 80. Note: If Auto Upgrade is set to No, F/W will download at boot time.
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, HT503 will request the firmware file with the prefix. This
setting is useful for ITSPs. End user should keep it blank.
Firmware File Postfix Default is blank. End users should keep it blank.
Config File Prefix Default is blank. End users should keep it blank.
Config File Postfix Default is blank. End users should keep it blank.
Automatic Upgrade Choose “Yes” to enable automatic upgrades and provisioning. In “check for new
firmware every” field, enter the number of days to set the frequency in which the HT503
will check the server for firmware or configuration upgrades. When set to “No” the
HT503 will only upgrade at boot time. You can also have the HT503 check for updates
only when the firmware file prefix/suffix changes. The Default is “Yes”.
Authenticate Conf File This protects the configuration from an unauthorized change. If set to “Yes, the
configuration file is authenticated before acceptance.
Firmware Key Key for firmware encryption. (32 digits in hexadecimal format. End users should keep it
blank.
Call Progress Tones
Using these settings, users can configure tone frequencies according to their
preference. By default they are set to North American frequencies.
These should be configured with known values to avoid uncomfortable high pitch
Grandstream Networks, Inc. HT503 User Manual Page 22 of 35
Firmware 1.0.0.6 Last Updated: 6/2007