The 2GIG LTEA-A-GC2 is a 4G LTE cellular communication module designed to provide robust and reliable connectivity for 2GIG GC2 and GC2e security panels, utilizing the AT&T network. This essential module enables fast alarm signal transmission and supports two-way Voice over LTE (VoLTE) for clear communication with monitoring stations when paired with Alarm.com interactive services. It effectively eliminates the need for traditional phone lines, offering dependable coverage across the USA and Canada. The plug-in design, complete with two LTE antennas, ensures straightforward installation in GC2 panels (firmware 1.19.3 or newer) and GC2E panels (firmware 1.21 or newer). This communicator supports secure two-way data, remote system control, status notifications, and Over-the-Air (OTA) firmware updates, streamlining both installation and ongoing maintenance for security professionals.