Thats weird at my ca in in Wi Im in an extended network and I am on a network extender to boot I can send and recieve calls but I have to have a computer line for the network extender so Im on wifi its crazy but it kunda works sometimesI think it is US Cellular here as well. I couldn't even get on CDMA while in the extended network. Once I left Verizon's towers I was doomed. At one point in time the lock screen would say "No SIM card, please insert a SIM card".