[nmglug] Segment phone log MP3

Hi OS  Debian 10. Firefox, Cinnamon. The call log has a voice segment saved in mp3. in the filesystem i created a phone folder when I attempt to save partial list opens with a choice for additonal choices when that opens there is no additonal list per se although I can save to for instance Documents, Downloads. Videos. How would I save to Phone folder.As so many are, I am not a fully time professional so any advise will need to clearly connect each element of any solution. Thanks, a