Marketing description

A Session Border Controller or SBC is a special-purpose device that protects and regulates IP communications flows. As the name implies, session border controllers are deployed at network borders to control IP communications sessions. Originally conceived to protect and control VoIP networks, SBCs are now used to regulate all forms of real-time communications including VoIP, IP video, text chat and collaboration sessions.

Key selling points

• Security
• Multi-vendor interoperability
• Protocol interworking
• Quality of service (QoS)
• Session routing

Product features

• Security
  SBCs protect against Denial of Service (DoS) and Distributed DoS (DDoS) attacks, safeguard against toll fraud and service theft, and provide media and signaling encryption to ensure confidentiality and protect against impersonation/masquerade.
• Multi-vendor interoperability
  SBCs normalize SIP (Session Initiation Protocol) signaling stream headers and messages to mitigate multi-vendor incompatibilities.
• Protocol interworking
  SBCs enable interworking between diverse protocols (i.e. SIP-to-H.323) or diverse codecs (i.e. g.711 to g.729 transcoding).
• Quality of service (QoS)
  SBCs enforce call admission control (CAC) policies, type of service (ToS) marking, or rate limiting for service quality assurance.
• Session routing
  SBCs route sessions across network interfaces to ensure high availability or enable least-cost routing (LCR).