Rinzone

I got a call from someone I don't know named Rinzone. Somehow, it is a video call, and I can see this guy on my phone. He's a frat-looking dude with a white backwards baseball cap. I am annoyed, and unsure whether or not he can see me too. I hit "cancel" a bunch of times to end the call, but then I see that he's been automatically added to my contacts list.