how to stop 'click' sound while Taking Snaps

This is the most disturbing thing in the Wonderful handsets of Sony Ericsson(and probably other cell phones), Whenever you try to take a snap of someone in silent your SE handset makes a "click" noise. And every one gets attention to your Cam.
i dont know if that means good or bad but there is a way to avoid this all you need is to make a simple call say some free dialing number like Balance enquiry etc. Then Move the lead of your Mobiles Camera( or start cam from menu ), Cam gets started while you are on call. Shoot your snap " viola!!!!!"..... No noise at all.