I am on my 3rd D2 in 6 months, and they are all doing the same thing. When I make a call, I can hear who I am talking to, but they cannot hear me. If I make a call, and hit speakerphone before it is answered, I get a normal 2-way conversation. Also, this problem never occurs when I answer an incoming call. This problem is magnified at night moreso than during the day. Please Help!