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Grandstream Networks, Inc. HT-502 User Manual Page 29 of 32
Firmware Version 1.0.4.2 Last Updated: 06/2011
Saving the Configuration Changes
Click the “Update” button in the Configuration page to save the changes to the HT502 configuration. The
following screen confirms that the changes are saved. Reboot or power cycle the HT502 to make the
changes take effect.
Rebooting the HT502 from Remote
Press the “Reboot” button at the bottom of the configuration menu to reboot the ATA remotely. The web
browser will then display a message window to confirm that reboot is underway. Wait 30 seconds to log in
again.
Configuration through a Central Server
Grandstream HT502 can be automatically configured from a central provisioning system.
When HT502 boot up, it will send TFTP or HTTP/HTTPS request to download configuration file,
“cfg000b82xxxxxx” or “cfg00082xxxxxx.xml”, where “000b82xxxxxx” is the LAN MAC address of the
HT502. It will first request “cfg000b82xxxxxx” then “cfg000b82xxxxxx.xml”
The configuration file can be downloaded via TFTP or HTTP/HTTPS from the central server. A service
provider or an enterprise with large deployment of HT502 can easily manage the configuration and service
provisioning of individual devices remotely from a central server.
Grandstream has a provisioning system called GAPS (Grandstream Automated Provisioning System) that
is used to support automated configuration of Grandstream devices. GAPS uses enhanced (NAT friendly)
TFTP or HTTP (thus no NAT issues) and other communication protocols to communicate with each
individual Grandstream device for firmware upgrade, remote reboot, etc.
Grandstream provides GAPS service to VoIP service providers. Use GAPS for either simple redirection or
with certain special provisioning settings. At boot-up, Grandstream devices by default point to
Grandstream provisioning server GAPS, based on the unique MAC address of each device, GAPS
provision the devices with redirection settings so that they will be redirected to customer’s TFTP or
HTTP/HTTPS server for further provisioning. Grandstream also provide GAPSLITE software package
which contains our NAT friendly TFTP server and a configuration tool to facilitate the task of generating
device configuration files.
The GAPSLITE configuration tool is now free to end users. The tool and configuration template are
available for download from http://www.grandstream.com/support/tools .