The S112 LTE & WiFi IP Public Phone is designed for robust and reliable public use. It features a 2.8" 320*240 TFT color screen, 2 SIP accounts, 4G data and WiFi connectivity, and a backup battery. The device supports password-protected advanced menu, multilingual interface, Asterisk and BroadSoft platform compatibility, and FoTA upgrades. It includes IC card management, a magnetic red hook-switch, durable PC+ABS plastic body, heavy-duty handset with noise-canceling microphone, adjustable auto-hang-up duration, and is waterproof with an IPX5 rating. Suitable for indoor use, the S112 ensures secure and easy installation with its vandal and tamper-resistant hardware.