I recently bought the a900. When I connect my bluettoth, at random time, such as afer disconnecting a call, or after being idle for any length of time, the bluetooth (all 3 that I have bought and tried) piece I am using starts playing a tone, or a melody which sounds like 5 or 6 tones together quickly. I would love to know what this is, or what causes it. It only happens if/when I use 1 of my bluetooth pieces and once this tone starts, I cant do anything like getting calls, or sending them as the tone/chime interrupts and cuts conversations as well as voicemail. I have to turn the phone off and than disconnect the bluetooth piece in order to cut the bluetooth link
