Tired of receiving messages like the following every 8 minutes?

Mar  3 15:37:06 WARNING[11697] res_musiconhold.c: Found no files in '/var/lib/asterisk/mohmp3'
Mar  3 15:37:06 WARNING[11697] res_musiconhold.c: Unable to spawn mp3player

Despite not having MOH (Music On Hold) setup, for some reason Asterisk insists on looking for mp3 files.  Why it does so, I have no idea.  Seems pretty silly to go looking for them if you're not even using that feature...  Oh well...

The solution is VERY simple though.  Just touch anything.mp3 in the listed directory and Asterisk will quit bugging you.  Doesn't matter that you just created a completely empty file without a proper mp3 header.  Asterisk only seems to care that something (anything) exist in that directory with the extension of ".mp3"!