I have purchased the new Samsung Galaxy S II for my personal and professional use one month ago. I donít have any problem with the working of the device till last week but after that I faced some serious problem regarding to that. The actual problem is Speaker and mic of my phone not working while calling. The telephone is ringing to whoever I am calling, but the one I am calling cannot catch me (hear me) and vice versa. During this the phone makes the little dialing sound and then I can hear it is ringing with the normal ringing sound. I think the problem is in both mic and speaker also. I cannot understand what to do. Can anyone give me some solution to solve this problem? Please help me.