Thought I'd give an update to my iPhone 5 saga. The new SIM card in the wife's phone appears to have helped both of us. It may be a coincidence, but I stopped dropping calls (all my dropped calls happened when talking to her) after her new SIM card was installed. Also, her signal is much improved throughout our town. However, the signal was still horrible inside our apartment. The only way to keep the voice quality at an acceptable range was to sit in one spot with your left leg raised and a wire hanger sticking out of your ear. ;-)
Alas, there is some good news though! Our home reception has improved. It's still not as good as it was with our AT&T iPhone 3GS, but at least we can walk around a bit now. Good thing, cuz that wire hanger was starting to hurt! LOL
Things improved after I enabled Data Roaming. When the Verizon guy said my voice signal would improve if I turned on Data Roaming, I was skeptical. I questioned how that was possible if it's DATA roaming? If data and voice where the same signal, then why does their Web site have 2 different coverage maps: one for data and one for voice? He didn't have a good explanation, but it seems to have helped anyway. So everyone make sure your Data Roaming is turned on. It can be found at:
Settings>General>Cellular>Roaming>Data Roaming
I hope this helps someone. And for the record, the Verizon tech guy that was supposed to call me back, never did. You know, even if I hadn't dialed ### to report any dropped calls, I feel that if someone says they're going to call back to check on your situation, they should do it. Uncool, Verizon.