The 2GIG LTEA-A-GC3 is a 4G LTE cellular radio module designed to provide robust AT&T network connectivity for 2GIG GC3 and GC3e security and automation panels, fully supporting Alarm.com interactive services. It features native two-way Voice over LTE (VoLTE) for clear communication during alarm events. A key highlight is its end-user replaceable cell sled design, which simplifies upgrades and maintenance, thereby reducing the need for dealer truck rolls. This 100% LTE module efficiently transfers both data and voice, enhancing support for smart home devices and improving remote control experiences. The communicator is compatible with GC3 and GC3e panels running firmware version 3.2.3 or newer and includes two LTE antennas to optimize signal reception across the USA and Canada.