The talk was given by Dan from CG Race Project at the FOSDEM conference in 2023. They offer a real-time enterprise billing suite that is pluggable into existing infrastructures and can accommodate new services and industries like IOT and energy. The software is 100% open-source and written in Go. The talk discussed how to integrate their system with existing infrastructures using their API-driven approach. They demonstrated a number of APIs that can be implemented in switching software or WebRTC applications.