I answer and I get an unending stream of ""please hold for an associate" recordings. My caller ID says Fresenius. I am a dialysis patient and attend a Fresenius Dialysis Center so you'd THINK it's a valid caller. I called back and after 10 rings I get an answering machine message "Your call is being answered by Audix". I left a bunch of F-bombs, left my name and number, and hung up.