A:AnswerThere is a port on the side of the phone marked with a headset icon where to plug in but the port seems much smaller than the the port used for headsets on my cell
A:AnswerI have no idea. I wanted a very basic phone set. My one major criteria after being very basic is that it sound good. I was advised it does. It does not. It sucks. I would not purchase this unit again. Therefore, I'd stay away from any AT&T product.