While roaming in Mt. Airy, NC I can send and receive text but when I try to make a call I get a message to re-enter the 10 digit phone number and when I do I just get a fast busy signal. I'm not sure if the roaming will work anywhere as this is the first time I've tried to use the roaming. I have an LG Exceed 2 and had a strong signal 4 bars,I dialed *228 and updated the roaming when I got to my destination and then while roaming through the same area on my way home the same problem.