Is AT&T a CDMA or GSM network? AT&T is a GSM network carrier and works with GSM cell phones. GSM stands for Global System for Mobile Communications. GSM and CDMA are the 2 types of 3G networks that cell phone carriers use to provide your service.
Is AT&T a CDMA or GSM network? AT&T is a GSM network carrier and works with GSM cell phones. GSM stands for Global System for Mobile Communications. GSM and CDMA are the 2 types of 3G networks that cell phone carriers use to provide your service.