OpenGSM

OpenGSM is an open-source project that provides free, customizable software tools for managing and operating GSM (Global System for Mobile Communications) networks. It's designed for engineers and developers to build, test, and experiment with cellular network technology without relying on proprietary hardware or software. By offering transparent and flexible code, OpenGSM enables users to better understand network operations, develop new features, and improve existing systems. It supports various GSM network components, such as base stations and core network elements, making it a valuable resource for research, education, and small-scale network deployments.