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Grandstream Networks, Inc. BT200 User Manual Page 32 of 37
Firmware 1.1.1.14 Last Updated: 12/2006
NOTE for TFTP/HTTP Firmware Upgrade:
1. When the BT200 boots up, it will send TFTP or HTTP request to download configuration files.
There are two configuration files, 1) “cfg.txt” and 2) “cfg000b82xxxxxx”, where “000b82xxxxxx”
is the MAC address of the BT200 .
2. These two files are for initial automatic provisioning purposes only. If using a normal TFTP or
HTTP firmware upgrade, the following error messages in a TFTP or HTTP server log can be
ignored.
• TFTP Error from [IP ADRESS] requesting cfg000b82023dd4 : File does not exist
• TFTP Error from [IP ADRESS] requesting cfg.txt : File does not exist
No Local TFTP Server
For those who do not have a local TFTP server, Grandstream provides a NAT-friendly TFTP server on
the public Internet for firmware upgrade. Please check the Support/Download section of our website to
obtain this TFTP server IP address:
http://www.grandstream.com/y-firmware.htm. Each product has a
unique TFTP server address.
Alternatively, download and install a free TFTP or HTTP server to the LAN to perform firmware upgrades.
A free Windows version TFTP server is available:
http://support.solarwinds.net/updates/New-
customerFree.cfm.