News AT&T could soon offer GSM to U.S. customers By - December 2, 2000 25 FacebookTwitterPinterestWhatsAppLinkedinReddItEmail Author: JT Smith Slashdot readers discuss a a CNet story about plans by AT&T to offer GSM cell service to U.S. customers. This is a boon for wireless access in the U.S., as GSM offers many services previously unavailable.