What Are The Reasons To Protect A Network With Session Border Controller (SBC)?

Interruptions in the middle of a vital phone call can be frustrating! Additionally, cyber-attacks and fraud calls have become a common nuisance for every consumer. But, having proper network protection of sbc system can change the scenario. A Session Border Controller (SBC) is a network element typically deployed at a network’s border to control and manage the signaling and media traffic between different communication networks or endpoints. SBCs are used in Voice over Internet Protocol (VoIP) and Unified Communications (UC) networks to ensure secure, reliable, and high-quality communication between networks and endpoints.

Variety of Functions of an SBC System


Security: SBCs protect against security threats such as denial of service (DoS) attacks, unauthorized access, eavesdropping, and fraud by enforcing security policies and filtering and blocking malicious traffic.


Interoperability: SBCs ensure that different networks and endpoints can communicate with each other by resolving compatibility issues related to different signaling and media protocols, codecs, and formats.

Quality of Service (QoS): SBCs provide QoS by monitoring and managing the traffic between different networks and endpoints to ensure that voice and video traffic is delivered with low latency, high quality, and no packet loss.

Routing: SBCs route traffic between different networks and endpoints based on policies, priorities, and service level agreements to optimize network performance and resource utilization.


Session management: SBCs manage and control sessions between different networks and endpoints by establishing, modifying, and terminating sessions based on signaling and media protocols.

What are the Major Advantages of an SBC System?


Network Security: SBCs provide an additional layer of security by protecting against attacks and unauthorized access to the network. They can prevent Denial of Service (DoS) attacks, protect against toll fraud, and protect against other malicious activities.

High-Quality Performace: SBCs can ensure that real-time communications, such as voice and video, are delivered with high quality and low latency. They can prioritize traffic, prevent congestion, and enforce bandwidth limits.

Interoperability: A reliable sbc system can provide interoperability between different types of networks and devices, such as SIP trunking, PSTN, and mobile networks. They can also support different protocols and codecs, enabling communication between vendors and solutions.

Scalability: SBCs can support many concurrent sessions and can be scaled up or down as needed. This makes them suitable for businesses of different sizes and with different communication needs.


Overall, SBCs play a crucial role in ensuring the secure and efficient delivery of voice and video traffic over IP networks. They help to ensure that communication is of high quality and meets the necessary security standards, making them an essential part of many modern communication networks. A network security service provider can help clients protect computer networks and information systems from unauthorized access, attacks, and other security threats. The experts can effectively manage an sbc system and VPNs to ensure that they are configured properly and provide secure access to network resources. The experts can conduct penetration testing to identify vulnerabilities and recommend improvements to security controls. They can help identify and mitigate security risks, respond to security incidents, and ensure compliance with regulatory requirements.

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