So this has been going on for about a week now. My mom and I have both been receiving calls from each others cell phones, but neither of us are calling each other. Like I'll get a call from her, but she claims she never called me, and vice versa. I personally thought it was some kind of phone glitch but today my mom picked up the phone which she thought was me, but then someone started talking in a muffled voice she said and she couldn't understand what he was saying. Does anyone know what this is or what causes it? It makes me wonder if someone obtained our numbers and is calling disguised with it. First time it's ever happened.