Just a note that your post has so little to work with that an answer is unlikely. No mention of Windows, MacOSX, Linux, make, model of hardware at use or if the issue is mutual if they call you.
The person on the other side hears a noise when I'm using my camera. When I'm only chatting with it no prob, but when I start the video the other side gets an annoying noise. Can anyone tell me what's going on?