Session Border Controllers (SBC)

About

Session Border Controllers (SBCs) are enterprise-grade security and connectivity devices that sit at the edge of your VoIP network. They protect SIP trunks, manage media streams, and enable secure, reliable communication between your internal PBX and external providers — all while preventing fraud, DDoS attacks, and toll fraud. What Are Session Border Controllers and How Do They Work? An SBC acts as a smart firewall and traffic manager for VoIP/SIP traffic. It handles signaling (SIP) and media (RTP) streams, performs NAT traversal, transcoding, and encryption while enforcing security policies. Essential for any business using SIP trunks, hosted PBX, or hybrid cloud VoIP deployments. Key Benefits of Deploying an SBC Advanced VoIP security — SIP firewall, topology hiding, and fraud prevention Seamless SIP trunking with any provider (AT&T, Verizon, etc.) Media transcoding & optimization for bandwidth efficiency High availability with failover, load balancing & redundancy Compliance-ready encryption (TLS/SRTP) and regulatory support Types of Session Border Controllers We Carry Enterprise SBCs – AudioCodes Mediant series for high-density, carrier-grade deployments SmartNode SBCs – Patton’s cost-effective, feature-rich SBCs for SMB and mid-market Vega SBCs – Sangoma’s powerful Vega series with easy FreePBX/3CX integration EdgeMarc Intelligent Edge – Ribbon/Edgewater solutions for branch offices and SD-WAN How to Choose the Right SBC for Your Business Consider concurrent call capacity (sessions), transcoding needs, interface options (Ethernet, T1/E1), security features, and compatibility with your PBX or SIP provider. Not sure which model is best? Our Austin-based VoIP engineers can spec the perfect SBC in minutes. Why Buy Session Border Controllers from The Telecom Spot? ✓ Authorized dealer for Patton, AudioCodes, Sangoma & Edgewater/Ribbon ✓ 100+ SBCs in stock with real-time pricing and availability ✓ Same-day shipping from our warehouse on in-stock items