ACTS has built a carrier-grade firewall system for FarEasy Telecom to protect the 3G/4G network infrastructure. In addition to effectively blocking a large number of random scans and network detections from the Internet, it also protects users' mobile Internet security. This project cooperates with Fortinet to select a carrier-grade firewall platform, equipped with a high-performance network traffic processing chip, and provide highly flexible deployment and scalability.