UTStarcom PPC-6700 / XV-6700 / HTC Apache
Question:
http://wiki.xda-developers.com/index.php?pagename=PP ... »
Install Activesync 4.1 (or higher) on your desktop and do a sync. It will ask you what you want to sync. Select your contact list (among others). Once the sync is complete, your contacts are backed up... if you ever need to restore them to your phone, do a sync again and it will restore them from your desktop.
enjoy !