Well that's not good. I've gone back and forth on switching from AT&T 4 times today. Now I'm leaning towards staying put.Crap. That's how it works on all of the other LTE phones, but I just found out simultaneous voice and data won't work on the Verizon and Sprint iPhone 5s because of the dynamic antenna. Only one can be active at a time, and simultaneous voice and data need two operating at once.
Sorry for the misinformation; this news just came out this afternoon.