S3 Session Border Controller

GENBAND's S3 Session Border Controller delivers secure carrier class, real-time communications for mobile and fixed line service providers, enabling new service offerings, rapid revenue generation and network cost-savings. With extensive security, policy enforcement, and session management capabilities, the S3 brings operators advanced levels of functionality, flexibility, and performance at IP network borders.

• Carrier-to-Carrier: The S3 provides secure connectivity with granular controls to proactively manage interconnect quality, capacity, and availability, supporting bilateral and multilateral carrier interconnect agreements for national call routing, international long distance, and local PSTN termination
• Carrier-to-Enterprise Access: Normalizing traffic for seamless connectivity between carrier and enterprise networks, the S3 provides extensive SLA management, SIP trunking, PBX/IP PBX and H.323/SIP interworking, and call center and hosted VoIP application support
• Carrier-to-Consumer Access: The S3 protects the network edge with overload protection via multi-stage rate limiting policies, registration throttling, and subscriber authentication and authorization, enabling operators to deliver the highly differentiated voice and multimedia services

Security: The S3 protects service provider and enterprise networks by providing multi-layered security against a wide variety of Internet threats meant to disrupt or disable IP networks including flood attacks, DoS/DDos attacks, and SIP signaling attacks. Capabilities include intelligent access and admission control, private-to-public IP network address and port address translation (NAT and PAT) and NAT traversal, and topology hiding.

Interoperability and Interworking: The S3 normalizes the network edge, providing a wide range of flexible policies to seamlessly interoperate with multi-vendor and multi-protocol VoIP equipment. Normalization includes ANI/DNIS, network address, protocol, DTMF, and codec translation for smooth interworking between interconnect and access networks. Compatibility across firewalls, application servers, proxies, endpoints, media gateways, and softswitches is ensured with a large community of interoperability partners. The S3 can separate media and control planes and supports 3GPP™, IMS, TISPAN NGN, MSF, and PacketCable™ networks.

Advanced Routing via MSX Feature Set: As an SBC feature in the S-Series platforms, the MSX feature set offers service providers intelligent call routing at network interconnect borders, including dynamic route hunting, adaptive routing, and least cost routing. It enables the dynamic routing of traffic to interconnect peers based on call completion rates, route profit, and route availability. Sophisticated routing intelligence reduces IP-IP session routing complexity, and policy enforcement enables advanced traffic engineering at the session layer for managed service assurance and SLA compliance. The MSX feature set also facilitates VoIP traffic management by monitoring and maximizing utilization of high-value feature or application servers and media gateways.

Policy Enforcement, SLA Management and Session Visibility: GENBAND’s comprehensive SLA management solution has multi-staged policies to admit, inspect, and shape traffic. It manages network access using real-time and aggregated admission control policies; prevents service theft by authenticating users, inspecting media address, and codecs; and shapes traffic per QoS marking, and egress session and bandwidth rates and capacity. IP session visibility is provided into each IP session by generating real-time session detail records (SDRs) with over 90 fields.

Carrier-class Performance, Reliability, and Management: The S3 is based on a carrier-grade Linux OS platform in a high availability, 2U NEBS configuration, including hot standby for redundancy and high availability with state migration of active sessions in less than 200 milliseconds. The S3 scales from 500 to 25,000 media sessions on the same chassis. The S3 is managed by the feature rich GenView-RSM EMS that provides enhanced visibility and QoS via on-demand session reports on session statistics such as ASR and QoS, actionable alarms to feed back into SLA policies, and tools for granular troubleshooting and diagnostics.