I think we have another 4g site. Sitting in my apartment in sunbury and all of a sudden it lit up and haven't had it inside before. I think the site is the one at 61 and 3 in sunbury. serving cell 65, I will investigate a little more in the morning to confirm.
That's correct, for now it will kick you back to 3g/cdma while on voice calls. In the future (most likely the distant future) Sprint will probably implement Voice over LTE (VoLTE) in which case LTE will handle calls/text/data.