Man's Voice Through Comp Speakers

I was talking to one of my friends I have just met lastnight about her and I's haunting happenings, around 1:55 PM and out of nowhere I heard a man's voice come through the speakers and say my name.

Marks On Arm

This morning when I woke up I seen on my wrist/forearm area some weird markings that were sorta grooved into my skin. It took part of the day for them to go away, but they did. Have no clue what they are or where they came from.