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Who is Radisys?
Radisys is a technology company that provides open telecom solutions and software platforms for communication service providers and network operators across wireless, wireline, and digital engagement domains.
- Open telecom and network infrastructure solutions for communication service providers
- Software platforms for 4G/5G access, core, and aggregation networks (telecom networking)
- Digital engagement and customer experience solutions for service providers (customer engagement)
- Integration and professional services for telecom network deployment and modernization (services)
- Support for open standards-based architectures and disaggregated networks, including Open RAN (ORAN) and cloud-native deployments
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More About Radisys
Radisys focuses on software-driven, open telecom solutions used by communication service providers, network operators, and enterprises that deploy carrier-grade communication networks. Its portfolio spans access, core, and digital engagement domains, with an emphasis on open and disaggregated architectures that allow operators to combine hardware and software components from multiple vendors. This positioning aligns Radisys with enterprise and carrier environments that seek to modernize networks toward cloud-native, virtualized, and software-defined models while maintaining interoperability with existing telecom infrastructure.
In the wireless domain, Radisys provides solutions for 4G and 5G networks (telecom networking), including software for radio access networks (RAN), small cells, and core network functions. These offerings are typically deployed in virtualized or cloud-native environments using containerized network functions and orchestration frameworks compatible with common telecom cloud platforms. Radisys aligns its products with ORAN concepts, which decouple radio units, distributed units, and centralized units, enabling multi-vendor deployments based on open interfaces defined by industry bodies.
On the wireline side, Radisys supports broadband access and aggregation networks (broadband networking), including solutions aligned with software-defined access architectures. These systems are used by operators to manage high-capacity fixed access services, and are often integrated with existing OSS/BSS and network management systems. The company also targets converged access scenarios where fixed and mobile networks share common control, policy, and subscriber management functions.
Radisys also provides digital engagement solutions (customer engagement) that enable service providers and enterprises to deliver voice, video, and messaging services over IP networks. These offerings typically rely on Session Initiation Protocol (SIP), WebRTC, and related IP communications protocols, and can be embedded into customer-facing applications, contact centers, and collaboration tools. They are used to support omnichannel communication scenarios and to extend carrier-grade voice and messaging into enterprise and consumer applications.
Across its portfolio, Radisys emphasizes adherence to open standards and industry frameworks, including contributions to ecosystems centered on ORAN, open broadband, and cloud-native network architectures. Its products are designed to integrate with third-party network elements, orchestration platforms, and management systems through standardized APIs and interfaces, which positions them for use in multi-vendor, multi-domain telecom environments. For directory and taxonomy purposes, Radisys maps to categories such as telecom networking (4G/5G Radio Access Network (RAN) and core software), broadband networking (fixed access and aggregation), customer engagement (digital communications platforms), and professional services (network integration, customization, and support).
Our description of Radisys. Updated December 2025.
