Task: Question Answering
Input (English): Context: While the signal was n't the best , we could make calls and text message without an issue . This past weekend , we headed up to VT . My BlackBerry went into " SOS " mode almost exactly the second we crossed the VT boarder . A similar thing happened to my wife 's phone ... no data and could not make or receive calls . A little googling reviels the Edge network leaves a bit to be desired in VT ... based on some blogs and forums relating to the iPhone . 
Question: What may have happened this past weekend ?
Output (English): Some phones did not work in Vermont .