A Session Border Controller (SBC) is a network device used in VoIP (Voice over IP) and unified communication systems to manage and secure voice and video traffic across different networks. It acts as a protective gateway between internal enterprise networks and external communication channels, ensuring reliable, secure, and high-quality communication.
SBCs safeguard VoIP networks from cyber threats such as DoS attacks, toll fraud, and eavesdropping.
They hide the internal network topology, preventing unauthorized access.
Offer encryption and firewall traversal, ensuring voice data remains secure.
SBCs manage call signaling and media streams to ensure optimal call quality.
They route calls based on policies, cost, or quality, helping businesses manage communication more efficiently.
Enable interoperability between different VoIP platforms and SIP trunk providers.
Monitors and prioritizes voice traffic to maintain clear, uninterrupted conversations.
Adapts dynamically to network congestion and latency for better call performance.
Helps organizations comply with telecommunication regulations and lawful interception requirements.
Manages call logging and recording as per compliance policies.
SBCs enable communication between different signaling protocols and vendor systems.
This ensures smooth connectivity between legacy systems and modern IP-based platforms.
To secure communication across multiple networks.
To ensure consistent call quality and network performance.
To simplify network integration during VoIP deployment.
To reduce operational risks and maintain compliance with telecom standards.
A Session Border Controller is much more than a security tool — it’s a complete solution for managing, protecting, and optimizing real-time communication. Whether for small businesses or large enterprises, an SBC ensures that voice and video communications remain secure, interoperable, and high in quality across all networks.