The Teltonika Networks RUT956 is a robust industrial 4G LTE router designed for global use in demanding environments. This compact device, measuring 150 x 105 x 45 mm and weighing 450 g, features a durable metal housing for industrial applications. It supports multiple 4G LTE frequency bands for worldwide connectivity with dual SIM card slots for network redundancy and automatic failover. The router offers Gigabit Ethernet ports for reliable wired connections and dual Wi-Fi 802.11ac for high-speed wireless networks. Advanced networking features include VPN support with OpenVPN, IPsec, and PPTP protocols, as well as comprehensive firewall protection and traffic monitoring. The operating temperature range of -40 °C to 75 °C makes the device suitable for extreme environmental conditions. Power is supplied via 9-30 V DC for flexible installations in vehicles, industrial environments, or remote locations. Management features include web-based configuration, remote access options, and support for various industrial protocols. The design prioritizes reliability with watchdog functionality and automatic recovery mechanisms. Connectivity options extend to serial interfaces for integrating legacy devices and digital I/O for sensor monitoring applications. This router is designed for continuous operation in mission-critical scenarios where stable internet connections are essential.