Yesterday I went shopping and purchased a new Verizon SIM Card. For some reason, the T-Moble cell tower that services my home has fallen into disrepair. Starting about 2 months ago I started having problems with both voice and text. I tried for almost 2 months to get this tower reported only to be told to pound sand. So I used my Apple A1660 switched SIMs and ported my number from Metro to Verizon. It's really funny that this same phone works so much better on this network. I get full bars and my texts are working great!
Your milage may vary!