Session Border Controller

Quick Summary VoIP communications are increasingly vulnerable to cyber threats such as SIP spoofing, call interception, and toll fraud. Session Border Controllers (SBCs) are essential tools for defending against these threats. This guide explains what SBCs are, how they work, and why they are the backbone of a secure VoIP ecosystem. Index Introduction Understanding VoIP […]

Quick Summary A Session Border Controller (SBC) is a critical network element positioned at the edge of IP networks to secure, manage, and optimize SIP signaling and media streams, preventing fraud, enforcing quality of service policies, and hiding internal network topology. It performs core functions such as SIP header manipulation, RTP proxying (media anchoring), authentication […]