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BudgeTone-100 User Manual Grandstream Networks, Inc.
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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 phone will stop the TFTP process and simply boot using
the existing code image in the flash.
TFTP may take as long as 1—10 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 because the network environment like firewall,
NAT could affect TFTP function properly. 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.