Who called from 2164162172

They called my house 3 times hung up, when I called back 3 times they answered, but hung up 3 times in my face?

this call comes into the office numerous times daily. Shows up as Arrow International. I called and spoke with them and that is not one of their numbers.

Calls several times a day.  When I did answer it was a male asking to speak to the diabetic of the house.

(216) 416 2172 called this afternoon. I could not understand a word. It sounded like a woman's voice with Asian accent.
I ask three times to repeat, but I could not make out any words.