So I have a Verizon phone and I have to admit, I've dropped it a few times. Last night, I made several calls and received several calls, all were fine. Then this morning, despite the fact that I have good reception [4 bars] I can't seem to receive or make ANY calls... visited the website for troubleshooting tips, but it was no help at all. I've tested it by calling my house number a few times and calling my cell phone from the house phone but nothing is showing up. Is it possible that I accidentally changed a setting somewhere and now I can't use my phone to make calls at all and that received calls aren't showing up? My phone isn't locked and has a full battery right now. I have no clue what's going on! Any help is greatly appreciated!!