voice services are unlocked, i.e. the device will work with any GSM card OUTSIDE the U.S. (And i think outside North America). But in order to get BB service if you are traveling overseas you need to contact sprint, switch to the global data plan, and make sure that you have been switched
penguin3107 I just to buy one BB8830 from sprint, I'm not gonna use in USA I need it to use with Telcel in Mexico is a gift for my son.I put in sim card from Telcel but is not work, it get signal but I can't make calls.Do you think it really works??
I apprecciate you help.