What Is a Session Border Controller? A Session Border Controller (SBC) is a network element deployed at the boundary between two VoIP networks, such as an enterprise network and an external service network. Its primary function is to control, secure, and manage real-time communication sessions, including voice, video, and messaging. By acting as an intelligent intermediary, it ensures that sessions are established, maintained, and terminated smoothly without exposing internal network details. Read More - https://dinstarindia.in/session-border-controller/