In my daily backups of my 3CX v7 installation I notice a big amount of mp3 files in the ZIP package generated by the 3CX backup tool. They are located in the folder httpprompts in the ZIP archive. I can't find these files on the filesystem of the 3CX server. Nor can I find a way in 3CX to delete these. Is there a way to clean up these old no longer used voice prompts from the 3CX system so they won't have to be backed up every day over and over again? Thanks!