Virtual Policy and Routing Server

Ribbon's PSX delivers an enhanced Least Cost Routing (LCR) application enabling service providers to reduce costs and increase the quality of service by selecting the most appropriate SIP session routes based on a variety of criteria including interconnect carrier rates, service level agreements, voice quality, latency, and network capacity. Because of the complexity of LCR calculations and the number of variables involved, this decision-making process has traditionally employed teams of analysts or been addressed by LCR engines. Instead, the PSX's LCR application is offered as a highly scalable and flexible solution that works seamlessly with Ribbon, or 3rd party, session border controllers (SBCs). The LCR application aggregates pricing and customer information from back-office systems and combines it with near real-time SIP session metrics provided by Ribbon network analytics software to optimize policy decisions.

If you want to find the shortest path between two points, simply draw a straight line. If, however, you want to find the path with the lowest cost AND the best quality of service (QoS), it can be anything but simple and straightforward. By combining PSX and Ribbon Analytics, we can offer QoS Routing making it possible to find the best combination of cost and quality when determining a routing path. With QoS routing a service provider gains a competitive advantage to be the first choice for routing SIP interconnect and access trunk traffic.

When network operators support number portability services it costs them a very small fee to “dip” into a third-party number portability database for an address. Although the fee may only be a fraction of a penny for every dip, if you handle millions of calls these number translation fees add up fast. Fortunately, with the PSX there is a better way - host your own number translation server. PSX's number translation application enables carriers to deploy a number portability server in-house, reducing costs and decreasing per-call latency incurred from external 3rd party database dips. Like LCR, it is a highly scalable, highly flexible solution. The number translation application supports interoperability with multiple databases using SIP, ENUM, INAP, and TCAP allowing service providers to get number portability data directly from the source.