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What role does an SBC play in VoIP security?
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A Session Border Controller (SBC) plays a vital role in securing and managing real-time communication sessions, such as VoIP calls and video conferencing, between internal networks and external carriers or the internet. Many businesses underestimate its importance until they face issues like call quality degradation, fraud, or compatibility challenges.

Here’s why an SBC is essential:

  1. Security & Protection – SBCs act as a firewall for VoIP, preventing threats such as DoS (Denial of Service) attacks, toll fraud, and unauthorized access. They hide internal network details, making it harder for hackers to exploit vulnerabilities.
  2. Interoperability – Different carriers and communication platforms may use varying SIP protocols. SBCs normalize and translate these protocols, ensuring smooth call setup and compatibility between different systems.
  3. Quality of Service (QoS) – An SBC monitors call quality and optimizes media traffic. It can prioritize voice packets over data, reducing latency, jitter, and packet loss, which are crucial for crystal-clear calls.
  4. Regulatory Compliance – Many regions require lawful interception and call recording for compliance. SBCs help implement these features seamlessly.
  5. Scalability & Flexibility – Whether a business is expanding its remote workforce, integrating cloud-based communication, or adding new SIP trunks, SBCs make the transition smooth without compromising security.

In short, a Session Border Controller is not just a “nice-to-have” but a critical component for secure, reliable, and high-quality business communication. Without it, organizations expose themselves to risks of fraud, service interruptions, and poor call experience.
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What role does an SBC play in VoIP security? - by dinstar - Yesterday, 05:16 PM

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