AT&T Mustang is a GSM cell phone from AT&T, it work on GSM 850 / 900 / 1800 / 1900. This phone also support for 3G network, it work on HSDPA 850 / 1900. AT&T Mustang is one of old cell phone but have a good enough features, it use slide design with the QWERTY keyboard pinned behind the main screen, when you slide it, the keyboard will appear.
