That put Hathaway in a bit of a pickle as it prevented free flow of air in an out of the vault. Carbon dioxide is heavier than oxygen so there was a real danger to the tech who found himself locked in with no way out. The fact that he also has high-blood pressure did not help either.
Taking “can you hear me now” to the extreme, Hathaway, despite being underground within a concrete vault, was able to get a signal on his mobile phone and call 911. Police arrived, rescued the Verizon tech and arrested Cook.
That alone is a pretty strong testimonial about coverage, though we suspect it will not be used an any advertisements in the future.
source: CBS News Boston