Session Border Controller (SBC) VoIP Protection at its Best

Businesses connecting their infrastructure to a SIP Trunk, or VoIP Connection, require a Session Border Controllers (SBC) for security, interoperability and transcoding. Often times, businesses will forget the importance of an SBC when switching from their legacy phone system to VoIP and simply use their existing firewall for protection, and make a huge mistake! A typical firewall can only protect your data network and as soon as you as you open it up to the internet, which is how you connect to VoIP services, the entire network is exposed. The other pitfall of using your existing firewall, instead of an SBC, is that phone calls may not connect or there will be audio issues. An SBC will automatically do the call translations for you, with the built-in interoperability features and also translate the audio with built-in transcoding capabilities.

A Sangoma SBC protects both your data and voice network and is designed to handle every aspect of phone call interoperability challenges, audio transcoding and security that travel over the internet (or voice-over-ip phone calls).

Why do I need SBC?

SBC Models

From 5-4000 simultaneous calls Sangoma offers three lines of SBCs for small-to-medium business (SMBs), enterprises, and large carriers.

Each SBC interoperates with all major IP PBXs and UC systems, including: Asterisk®, BroadSoft®, Cisco®, Denwa®, Elastix®, FreePBX®, FreeSWITCH®, Gamma®, Samsung®, 3CX® and more.

All are qualified for Microsoft® Lync® and Skype for Business®



  • 5-20 simultaneous calls
  • Migrate to SIP trunking or Hosted PBX securely
  • High Availability for active/standby redundancy for mission critical businesses
  • DoS/DDoS attack protection
  • Network interconnect point for SIP trunking
  • Topology hiding for fraud protection

Enterprise SBC

  • 25-250 simultaneous calls
  • Enterprise inter-site networking and SIP trunking border control
  • High Availability for active/standby redundancy for mission critical businesses
  • Traffic visualization tools
  • All-in-one SIP and TDM interfaces for PRI connect
  • Hardware-based transcoding

NetBorder Carrier SBC

  • 250-4000 simultaneous calls
  • Connect VoIP islands together to create “all IP” infrastructure
  • High Availability for active/standby redundancy for mission critical businesses
  • Dual redundant PSU available – DC & AC
  • Connect VoIP islands together to create “all IP” infrastructure

Advanced Web GUI

Browser-based GUI use for configuration, control and monitoring of SIP trunks, network connections and security threats. Easy to use dialplan routing for basic and advanced call routing configurations. System logs and reports are also available directly from the GUI.

Diagnostic Tools

Browser based dashboard featuring time based graphing, system and session error reporting and email notifications upon faults. Onboard PCAP training tool capturing signaling and media, eliminating the need for extra port mirrors or hubs. The Hardware Crash protection feature reboots the system on lockup or hardware fault.

Simplified Licensing

All SBCs are field upgradable and licensing is per session based, which means all the features are always included – No sticker shock. Predictable SBC capacity and cost in every use case

Hardware Redundancy

Guarantee business continuity during catastrophic hardware failures by mirroring 2 SBCs together. Available free-of-charge, out-of-box!


Protection against malicious attacks such as Denial-of-Service, Fraud, BYOD, and SIP & RTP flooding. Toll fraud protection against hackers breaking into VoIP systems causing financial turmoil. Topology hiding for protection against exposing network routes.

Virtual Machine Options

For integration within existing data centre infrastructures, our SBCs are also offered in a software platform version which contains the same feature- rich capabilities as our scalable appliances and compatible in most VM environments including VMware, Hyper-V, KVM and Amazon Web Services.