Cellular Communicator on the AT&T Network, with Enclosure and Battery Backup (12V Rechargeable Battery Required), Adds up to 500 Users and 378 Doors, Requires Monthly Cellular Plan The 1st revolutionarily-easy, new cellular-based access control system, right-sized for the fastest growing, high-volume segment of commercial security todays small and medium size businesses (SMB). Virtually wire-free from the cloud to the doors, AirAccess offers a profitable new business model for creating new commercial accounts faster and adding new RMR twice as quickly, providing ACaaS, Access Control as a Service. Making all the right connections for you literally and figuratively, its effortlessly cellular, combining an economical hosted access system with super-easy installation and without IT/ISP issues.