Who called from 7182821016

This guy calls my parents home askin if she was interested in computer stuff. She told him no then the guy told her to [***] off then. We tried calling the number back and it's just a answering machine saying we can't leave a message because voicemail is full.

Calls and said hello, hello over and over in machine. Even if I were looking to buy something I would not buy anything from rude people like this!