In 2012 AT&T announced the shut down of 2G service for alarm communicators using the GSM/GPRS network to happen by January 1, 2017. Many alarm communicator manufacturers have been hard at work releasing the new 3G & 4G communicators in preparation of the proposed sunset date. For more information check out the link below to Security Systems News article. http://www.securitysystemsnews.com/taxonomy/term/4101