You can upgrade the software, kernel and configure files by FTP. 
 
When using FTP upgrade, you can set several parameters as follow: 
The IP address of the FTP server 
Name of the file to download from the FTP 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.