Who called from 5036733207

When I answered it immediately hung up on me. I think it is a computer calling to see if someone will answer and give the number to a marketing agent. Put number on auto reject list.

I got a call from this number no ringing like I was being transferred but there was no answer then I think I heard someone's voice then it cut off.

I let it go to voicemail.  No message.

I got a call from this number and could hear background noise and voices like a business environment.  I said hello repeatedly and they would not answer.

Annoying - rings and if I answer I hear noise - call back and get nothing