In the U.S., AT&T and T-Mobile are GSM carriers. Contrast with CDMA phone. See GSM. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

This high-end clamshell phone is one of Mitsubishi's first tri-band GSM phones. Key features include ... currently available from any major U.S. carrier. It is compatible with some U.S. networks ...