Integration with UniFi Controller Bundled at no extra charge, the UniFi® Controller software conducts device discovery, provisioning, and management of the UniFi Security Gateway and other UniFi devices through a single, centralized interface. Powerful Firewall Performance The UniFi® Security Gateway offers advanced firewall policies to protect your network and its data. Convenient VLAN Support The UniFi® Security Gateway can create virtual network segments for security and network traffic management. VPN Server for Secure Communications A site-to-site VPN secures and encrypts private data communications traveling over the Internet. QoS for Enterprise VoIP Top QoS priority is assigned to voice/video call traffic for clear calls and lag-free, video streaming.