I'm traveling this week. My phone worked fine before I left Philadelphia airport. Ever since I landed in Puerto Rico (7 hours ago), I can't call, text or use anything requiring data. Signal is strong, although it does say Extended Network. Extended Network is normal here though. I've made this trip numerous times & haven't had a problem in the past. I've tried taking the battery out multiple times from minutes up to a half hour at a time.Texts fail. When making a call, I get a message stating something along the lines of "Sorry for the delay a representative will be with you shortly." After a few minutes I get a message stating all lines are busy & get disconnected. The same exact thing happens when trying to update the phone with *228.