Routr

What is Routr?

Routr is a lightweight, open-source SIP proxy, location server, and registrar designed to build reliable and scalable SIP infrastructure. Built for telephony carriers, communication service providers, and system integrators, Routr provides the core networking components needed to manage Session Initiation Protocol communications at enterprise scale. The project is cloud-native, offering deployment flexibility across Kubernetes, Docker, and Gitpod environments. This architecture makes it suitable for organizations seeking to modernize their telephony infrastructure without vendor lock-in or licensing constraints. As an open-source project available on GitHub, Routr allows developers to inspect, modify, and contribute to the codebase. The lightweight design reduces resource requirements compared to traditional SIP infrastructure solutions, making it cost-effective for deployment in containerized and cloud environments. Routr handles essential SIP functions including routing incoming calls to appropriate endpoints, maintaining user location information, and managing user registrations. These capabilities form the foundation of any SIP-based communication system, whether for traditional VoIP, unified communications, or carrier-grade telephony applications. The project appeals to organizations looking for transparent, modifiable SIP infrastructure that can integrate with existing communication platforms and scale according to demand.