Who called from 4153196900

Calls, but leaves no message. I will continue to ignore the caller

Called my business phone so i had no choice but answer it.  The caller wanted to email me a booklet on IT solutions.  I wouldn't give out my email and referred him to my corporate office.  He wasn't happy and tried to get me to give him my email.  Not going to happen!!!!!!!  I told him i wouldn't open it anyway because it would be from an unknown source.  I finally just said thanks, have a good day and hung up

Did not answer suspicious number.

Called at 5:30am. I asked what they wanted and they hung up