Can I save voicemail away recordings and restore them after a rebuild of the system

I am going to rebuild my phone server to freepbx from trixbox ce.
I have saved the music on hold files but am trying to figure out if I can also save the voicemail away message recordings for each extension and restore them after the rebuild. I assume they are just files.
This will help me out so the staff does not have re-record their vm away messages again.
Thanks for help.

Not a problem, all the files are in /var/spool/asterisk/voicemail

there are some symlinks so the easiest way is to use on the new server:-

rsync -av oldserver:/var/spool/asterisk/voicemail /var/spool/asterisk