Key Features and Benefits

High Availability

• Local and Global Clustering
• Mid-Call Failure Recovery (specific backup server)
• SIP Application Health Monitoring
• Internal Resiliency – No Single Point of Failure
• Call/User Admission Control

Performance & Scalability

• SIP Call/Message Load Balancing
• SIP-aware Persistency (by call/conference/user ID or user configured parameter)
• Automatic Persistency for Outbound Calls (crucial for B2BUA/Gateways)
• TLS/TCP Processing Off-load and Acceleration
• Connection Reuse/Aliasing/Multiplexing
• Call Admission Control allowing operators and ISPs to retain full control over resource utilization and allocation

Interoperability

• Transport Agnostic (SIP over UDP/TCP/TLS)
• Transport Conversion (UDP, TCP, TLS)
• SIPS URI Conversion (SIPS to/from SIP w/transport=TLS)
• Integrated SIP Proxy
• Standards Compliant (RFCs 3261, 3263, 3265 and feature/IMS extensions)
• Field Tested for Interoperability
• Header manipulation enabling transparent interoperability between different networks and VoIP equipment for maximal flexibility

Flexibility

• Highly Configurable Rule-Based SIP Routing
  • Service classification
  • User Classification
  • Request Content
  • System Status (e.g., load)
• NAT/Firewall Traversal for Signaling
• QoS Guarantee and Bandwidth Management

Service & Network Security

• Authenticated TLS Encryption
• DoS Flood Protection (SYN, TCP, UDP floods)
• Configurable Access Control
• Call Admission Control guaranteeing optimal call completion even when under DoS attack

Time To Market

• SIP TLS/TCP on-the-fly enablement
• Interoperability with SIP servers, Proxies, Gateways and UAs
• Out-of-the-box and Configurable (no coding required)