I Tftp Upgrade Firmware Version 1255 Download Install !!better!! -

rommon 1 > IP_ADDRESS=192.168.1.50 rommon 2 > IP_SUBNET_MASK=255.255.255.0 rommon 3 > DEFAULT_GATEWAY=192.168.1.1 rommon 4 > TFTP_SERVER=192.168.1.100 rommon 5 > TFTP_FILE=v1255.bin

Once your software is installed, configure it to host the firmware file: Firmware Upgrade Guide - Grandstream Networks, Inc. i tftp upgrade firmware version 1255 download install