I just bought this ph (HTC EVO) a couple of weeks ago and there is a sporadic problem with incoming and outgoing phone calls. To and from landlines, cell phones, even the other cell phone that is on my shared plan. Sometimes when I place a call to a land line or another cell, the other person answers and hears me saying hello, but I can't hear them. Sometimes when someone calls me, (from land-line or cell) I can't hear anything upon answering the call. It's just silence. Then I find out (via text messaging to that person) that they heard me answer but I could not hear them responding to me. Anybody else have this same problem?