R4 Group uses carrier-grade telecom, data management and business intelligence platform. We complete millions of minutes of international calls over our global voice network every day. R4 Group operates through network nodes in Europe and USA. This enables us to offer higher SLA terms to our customers to have wider carrier interconnections via TDM & VoIP. Our service provides the highest quality voice termination via in-country direct routes and quality assured suppliers, with performance higher than market-level ASR, ACD.


Our infrastructure has been set up mostly using Sonus equipment — equipment that provides world-class switching and routing voice termination.

The Sonus GSX 9000 High-Density Media Gateway is the industry’s most trusted TDM/IP media switch, powering four of the world’s five most profitable service provider networks. The GSX 9000 gateway features a scalable, blade server architecture that allows networks to add more TDM or IP processing capacity to the GSX 9000 chassis as their network grows and evolves. Each GSX 9000 gateway can expand to over 20,000 circuit-to-packet ports while supporting rich media transcoding, making it ideal for network peering, international gateways and Class 4 switch replacements.

GSX Strengths

-Configurable chassis able to provide full session border control functionality

-Enhanced security features such as encryption, topology hiding, DoS protection and QoS safeguards.

-High availability (99.999%) with hot-swappable modules, redundant components, live software upgrades and automatic protection switching


Our Network Operations Center operates 24×7 and is responsible for comprehensive monitoring it utilizes the latest and best technology in performance monitoring, network visualization, proactive trouble reporting and response, and maintenance operations.