Odd title for a subject right? So my problem is weird. I can make/receive calls fine with most of my contacts but for a few specific people who have different carriers, I can't seem to receive a call or make a call to these people. When I receive a call, the screen goes black and I hear the ringtone though I can't answer since the screen is blank. Then I see my signal bars go from 5 bars to a red slash through it. When I try to call this person back, it doesn't even dial. The signal bars go from 5 bars to the red slash again. So in the meantime, I've figured out a workaround. Install Google Voice and call with my Google Voice number. It's kinda ghetto but it will do for now. Any suggestions? I've downloaded the latest firmware and I've updated my roaming via *228 2 Thanks so much!