At times, I'm in a building or location that doesnt get good reception and the phone's signal will move from VZW service to Extended service and/or No service. This isnt so much the issue as I understand it being out in the boon-docks and inside a brick building. What drives me nuts is the phone viberates when switching between these networks. I've searched high and low on how to turn this off, but havent seen anything that relates to this issue. Does anyone have an idea where to look?