The phone was okay at first, not great, but at least I could make and receive calls without issue. Now, it seems to be a constant issue especially when I'm at home. I have read of others having this same problem. This is an awesome phone. I don't understand it having this issue.
This may be you answer so give it a try first. Go to a Verizon Corp Store and pick up a new sim card. They are free from a VZW Corp Store.