User's Manual

HandyTone 286 User Manual Grandstream Networks, Inc.
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7 Software Upgrade with TFTP
To upgrade software, HandyTone ATAs can be configured with a TFTP server where
the new code image is located. The TFTP upgrade can work in either static IP or DHCP
mode using private or public IP address. It is recommended that the TFTP server must
have either public IP address or be on the same LAN with the HandyTone ATA.
There are 2 ways to set up the TFTP server to upgrade the firmware, namely through
voice menu prompt or via the HandyTone ATA’s Web configuration interface. To
configure the TFTP server via voice prompt, follow section 4.1 with option 06, once set
up the tftp ip address, power cycle the ATA, the firmware will be fetched once the ATA
boot up.
To configure the TFTP server via the Web configuration interface, open up your
browser to point at the IP address of the HandyTone ATA. Input the admin password to
enter the configuration screen. From there, enter the TFTP server address in the
designated field towards the bottom of the configuration screen.
Once the TFTP server is configured, power cycle the HandyTone ATA.
TFTP checking is only performed during the initial power up. If the configured tftp
server is found and a new code image is available, the HandyTone ATA will attempt to
retrieve the new image files by downloading them into the HandyTone ATA’s SRAM.
During this stage, the HandyTone 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 fails for any reason (e.g., TFTP
server is not responding, there are no code image files available for upgrade, or
checksum test fails, etc), the HandyTone ATA will stop the TFTP process and simply
boot using the existing code image in the flash.
TFTP may take as long as 1—2 minutes over Internet, or just 20+ seconds if it is
performed on a LAN. It is generally recommended to conduct TFTP upgrade in a
controlled LAN environment if possible. For users who do not have local TFTP server,
Grandstream provides a NAT-friendly TFTP server on the public Internet for users to
download the latest firmware upgrade automatically. Please check the Service or
Support section of Grandstream’s Web site to obtain this TFTP server IP address.