Grandstream Networks 486 - Manual (Page 27)

HandyTone-486 User Manual Grandstream Networks, Inc.
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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.