http://wiki.freepbx.org/display/FPG/Backup+and+Restore+Module

http://wiki.freepbx.org/display/FPG/Using+the+Backup+module

http://www.freepbxhosting.com/blog/freepbx-ftp-backup-tutorial/ setup FTP offsite backup

FreePBX → Admin → Backup and Restore

• Edit the Default Backup
• Under Templates drag and drop Full Backup, System Audio and Voicemail to below the Items bar to add them to the backup.
• Leave Backup Server at This Server as this is the server you want to back up.
• Under Storage Servers drag and drop Local Storage (local) to Available Servers
• Set Delete After to 7 to save the last 7 backups.

You can now use soft phone applications such as CouterPath's free 'X-Lite' application to make video calls to other Asterisk extensions.