BlackBerry Storm 2 9550 Unlocked Phone - No Warranty Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin. Vividly colorful touchscreen phone with improved SurePress platform, BlackBerry 5.0 OS, access to BlackBerry App World, and full range of BlackBerry messaging GPS-enabled for turn-by-turn directions; Visual Voice Mail; GSM global roaming capabilities Wi-Fi networking (802.11b/g); GPS location services; 3.2-megapixel camera/camcorder, Bluetooth stereo music streaming Up to 5.5 hours of talk time, up to 269 hours (11.2 days) of standby time