I recently bought Qwest’s new Motorola Cell phone, the T720. All and all it seemed like a pretty nice phone; however I discovered that when I use hands free unit there is a very annoying, constant chirping noise that whoever I talk to can hear. I tried several different brands of hands free units and found the problem with each one. I should also mention that although the person I am calling hears this noise clearly, I can barely hear it. What can I do to fix my Qwest phone’s voice problem? Please advice. Thanks.