Hi,
I strongly suspect a business I frequent of jamming mobile phone signals. I've never been able to have any sort of conversation there, and even text messages often fail to send. It's not related to my phone, because I had the same problem with my last phone on another carrier, and with my wife's phone (also on Verizon).
My phone thinks it's getting a good signal (3 or 4 bars), but can't even check my voicemail. The problems persist — but diminish as I exit the building — until I get about 10 feet from the front of the location. The reason I doubt it's just that the building is made of lead or something is because I can receive things like wi-fi signals (from Comcast, etc.) while inside. I know we're talking about different frequencies, but I assume most building materials that block RF do so somewhat indiscriminately.
Anyway, I wonder if Verizon can come and check it out. If they're not blocking it, I might have to try a new carrier...
Thanks,
Nicco