8.1.3  TFTP Upgrade 
You can upgrade the software, kernel and configure files by TFTP. 
 
When using TFTP upgrade, you can set several parameters as follows: 
The IP address of the TFTP server 
Name of the file to download from the TFTP server 
Used for upgrading the software of the phone 
Used for upgrading the kernel of the phone 
Used for updating/backup of the configuration file of the phone 
Used for updating/backup of the phone book of the phone 
This phone doesn't support this feature 
NOTES: It's not necessary to input file name when doing backup Configuration, Phone Book. 
 
 
8.1.4  Default Settings 
You can reset the phone to the factory default settings in the "default settings" option. 
 
Press the 'Reset to Factory Settings' option, the phone will load to factory default settings on 
the next reboot.