I have a Microsoft LifeCam vx-3000 webcam. My son has his own webcam on his laptop. I am able to see and hear him, but he can't hear me. I made sure my microphone is the default mic on my computer. Still no results. Can you help me?

Go onto your desktop icon and click the web cam, up at right of window you will see a little arrow click on that you will see audio and video. setting click it and it will guide you thru, when you come to the microphone screen click on the little arrow and select the web cam you are using..and then folow thru with the rest , this should help