OMGosh, this is exactly what my phone does. Only us with the same problem can really understand it. Its not that we miss calls, or out of area or anything like that. I can be standing right next to my wife and have her call me and nothing happens at all. BUT, as soon as I hit the power button, I get an incoming call message for less than half a second, then missed call notify. Call log says the call just came in, even though it can be hours or days when the call was placed. I also never get my calendar notifies or alams until I hit the power button. If it was an issue with the voicemail pic-up, It wouldnt affect the calender and alarms. Im at a loss, but see that we have a problem and should all get together with Sprint on a conference call, they are blaming it on me...........