Nokia 3120 Unlocked Cell Phone--U.S. Version with Warranty (Silver) This unlocked cell phone is compatible with GSM carriers like AT&T and T-Mobile. Not all carrier features may be supported. It will not work with CDMA carriers like Verizon Wireless, Alltel and Sprint. U.S. version tri-band GSM cell phone compatible with 850/1800/1900 frequencies and GPRS capabilities Built-in speakerphone for easy hands-free conversations SMS text messaging; T9 predictive text technology; voice memo recorder Up to 6 hours talk time and 410 hours standby time