Grandstream Networks HT-286 Software Upgrade

Grandstream Networks, Inc. HT–286 User Manual Page 26 of 28

Firmware 1.1.0.31 Last Updated: 1/2009

Software Upgrade

Software upgrade can be done via either TFTP or HTTP. The corresponding configuration settings are in

the ADVANCED SETTINGS configuration page.

To upgrade via TFTP or HTTP, the “Firmware Upgrade and Provisioning upgrade via” field needs to be

set to TFTP or HTTP, respectively. “Firmware Server Path” needs to be set to a valid URL of a TFTP or

HTTP server, server name can be in either FQDN or IP address format. Here are examples of some valid

URL.

e.g. firmware.mycompany.com:6688/Grandstream/1.1.0.31

e.g. 168.75.215.189

NOTES:

• Firmware upgrade server in IP address format can be configured via IVR. Please refer to the

CONFIGURATION GUIDE section for instructions. If the server is in FQDN format, it must be set

via the web configuration interface.

• Grandstream recommends end-user use the Grandstream TFTP server. Its address can be found

at http://www.grandstream.com/firmware.html. Currently the TFTP firmware server IP

address is 168.75.215.189. For large companies, we recommend to maintain their own TFTP/

HTTP/HTTPS server for upgrade and provisioning procedures.

• Once a “Firmware Server Path” is set, user needs to update the settings a nd r eboot th e de vice. I f

the configured firmware server is found and a new code image is available, the HT ATA will

attempt to retrieve the new image files by downloading them into the HT ATA’s SRAM. During

this stage, the HT ATA’s LEDs will blink until the checking/downloading process is completed.

Upon verification of checksum, the new code image will then be saved into the Flash. If

TFTP/HTTP fails for any reason (e.g., TFTP/HTTP server is not responding, there are no code

image files available for upgrade, or checksum test fails, etc), the HT ATA will stop the

TFTP/HTTP process and simply boot using the existing code image in the flash.

• Firmware upgrade may take as long as 1 to 20 minutes over Internet, or just 20+ seconds if it is

performed on a LAN. It is recommended to conduct firmware upgrade in a controlled LAN

environment if possible. For users who do not have a local firmware upgrade server,

Grandstream provides a NAT-friendly TFTP server on the public Internet for firmware upgrade.

Please check the Services section of Grandstream’s Web site to obtain our public TFTP server’s

IP address.

• Grandstream’s latest firmware is available http://www.grandst ream.com/firmware.html.

Oversea users are strongly recommended to download the binary files and upgrade firmware

locally in a controlled LAN environment.

• Alternatively, user can download a free TFTP or HTTP server and conduct local firmware

upgrade. A free windows version TFTP server is available for download from

http://support.solarwinds.net/updates/New-customerFree.cfm.

Instructions to download a free TFTP Server:

1. Unzip the file and put all of them under th e root directory of the TFTP server.

2. Put the PC running the TFTP server and the HT286 device in the same LAN segmen t.

3. Please go to File -> Configure -> Security to change the TFTP server's default setting from

"Receive Only" to "Transmit Only" for the firmware upgrade.

4. Start the TFTP server, in the phone’s web configuration pa ge

5. Configure the Firmware Server Path with the IP address of the PC

6. Update the change and reboot the unit