SIP Director provides an extensive set of features and benefits – many of them specifically designed for value added applications and services. SIP Director complements these products and services enabling them to quickly be plugged into to the network to make them real carrier-grade solutions. Below is a partial list of features and benefits; for additional information please consult the solutions brochure.
High Availability, Fail-over and Disaster Recovery
Radware’s SIP Director provides optimal call completion, recognizing application failures and overcoming them at any call state. SIP-based call establishment, responsiveness, completion and continuity are critical for SIP deployments in large scale networks. To ensure high availability of SIP services, SIP Director performs advanced health, resource and call handling capacity checks across all SIP aware entities. By intelligently and accurately routing SIP traffic across server clusters, SIP Director guarantees SIP service fulfillment and optimal call completion. SIP Director is a fully redundant solution with internal local fail-over and global traffic redirection and off-loading and backup between locations, thus ensuring carrier-grade resilience and multi-site disaster recovery.
Scalability and Performance
SIP services must be capable of scaling to accommodate growing volumes of users and calls. However, SIP application state management and the need to support TCP and TLS transport, introduces service scaling challenges. By optimizing SIP resource selection across application servers, core network entities and border elements, SIP Director improves SIP service performance and QoS. It achieves this by employing IP and SIP call/messaging load balancing along with TLS/TCP off-loading and acceleration, connection reuse and aliasing. SIP Director streamlines the utilization of SIP resources, enabling unlimited and scalable call handling capacity. In addition, SIP Director makes it possible to meet dynamic load and peak usage requirements by off-loading and managing SIP traffic between locations, while enabling transparent server addition, for tuned service capacity management and a highly economical “build-out as you grow” approach.
Security
Deploying SIP services in the network exposes its core and edge entities to security threats such as network DoS/DDoS attacks, SIP level floods and other SIP vulnerabilities. SIP Director provides integrated SIP-service and network security protecting operators’ SIP servers, core and edge SIP network elements against attack. SIP Director provides signature and behavioral based DoS/DDoS security delivering “zero-minute, zero-touch, zero false-positive” detection and mitigation of SIP layer floods, worms and SIP protocol exploits (e.g., buffer overflows, SQL injections).
Time-to-Market
Building a SIP service that can overcome the challenges associated with high availability, resilience, scalability, security and interoperability, typically requires long development cycles. The result is unwanted delays in service deployment and service launch. In contrast, SIP Director is a configurable “out-of-the-box” carrier-grade solution, which does not require coding for deployment. This in turn greatly reduces complexity and time-to-market for SIP service deployments for vendors, integrators and carriers.
Flexibility
SIP director comes with an easy-to-use configuration interface giving users and administrators full control over routing, load balancing and fail-over rules. The system performs in-depth SIP message analysis, which allows for the setting of SIP message-based routing rules.