We built a self-hosted video calling system for a healthcare platform client, replacing the usual “meeting link” pattern with a real phone-call flow: clinician dials, patient’s phone rings, patient answers.
Highlights:
- Web-to-Android calling with one-tap answer
- Jitsi Android SDK startup optimization for near-instant connect
- Server-owned call lifecycle: ring, answer, decline, timeout, stale-call replacement
- Jitsi on Kubernetes, portable across cloud, hospital, and on-premise
- Prometheus, Grafana, and OpenTelemetry observability
- Load-tested and handed off for client-owned operation
