A freeware gem from Christersson.org.
Phone Backup will take a backup of the following settings in your phone:
You pick the settings you wish to back up, then choose the file name and location on your hard drive where to store the data. The data can then be restored at any time. If desired, the program can even perform a master reset before restoring.
The program should work with the Ericsson / SonyEricsson phone models R520, T39, T65 and T68. The T300 is not supported.
This program requires Mobile Phone Monitor to be installed.