... - Use with Any GSM SIM Card (AT&T, Rogers, T-Mobile, etc.). Please note Sprint, Verizon and Nextel ... not use a GSM SIM card and would not work on this phone. Modes: GSM 850 / GSM 900 ... Custom Ringtones, Digital TTY/TDD, Flight Mode, Games, GPS Support, MMS, Multiple Languages, PC Sync, Picture ID, ... oz Description: This variant of the Curve adds GPS with support for location-based applications, but is ...