Ribbon's PSX Software Edition (SWe) is a virtualized version of Ribbon's centralized policy and routing solution. The PSX SWe is at the core of many of the world's largest telecom networks, owing to its ability to deliver intelligent session control for VoIP services on SBCs, media gateways, and call controllers.

PSX SWe is a standards-compliant, multi-protocol solution providing a policy and call routing engine that works seamlessly in heterogeneous voice networks supporting SIP, ENUM, H.323, TDM, SS7/C7, IN/AIN, and IMS. Its distributed architecture enables providers to deploy local instances for performance and resiliency, yet also take advantage of centralized policy, routing, and administration. This model eliminates the need to create, maintain and synchronize routing and policy across hundreds or thousands of sites and thousands of network elements. 

PSX SWe applications address least cost routing (LCR), quality of service (QoS) routing, toll-free number routing, and number translation services, PSX SWe can perform as an IMS Breakout Gateway Control Function (BGCF). In addition, PSX SWe provides call validation treatment for STIR/SHAKEN and Reputation Scoring services used to mitigate call spoofing and robocalls.

PSX SWe can be deployed as a virtual network function (VNF) in multiple private or public clouds, fitting seamlessly into a service provider's virtual and cloud strategy, In a service provider's private cloud, PSX SWe can be implemented on OpenStack orchestrated by Ribbon’s VNF Manager or any ETSI-compliant VNF orchestrator. Alternatively, PSX SWe can be implemented in the AWS public cloud.

Download our PSX SWe Datasheet

Least Cost Routing, QoS Routing and Number Translation Services

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.

Least Cost & QoS

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Ribbon Application Management Platform

Ribbon’s PSX SWe is managed from a centralized Ribbon Application Management Platform (RAMP) solution, offering a complete set of Fault, Configuration, Accounting, Performance, and Security features.

By delivering intuitive, reliable, scalable, and automated management, it is possible to quickly define policy and routing configurations, identify and remediate issues, deliver improved customer experience, and do so at reduced operational costs.

Ribbon Application Management Platform manages both primary and secondary (replica) PSX SWe deployed across private data centers and private or public cloud environments The platform itself is designed using cloud-native principles and can be deployed in multiple data centers and public or private cloud environments in standalone or high availability configurations, including options for geographic redundancy.

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