Real-time voice & video calling SDK

Chat can retry in the background. A call connects in a few seconds or the user hangs up and dials from their phone instead. Calls also fail in ways I can’t reproduce at my desk: a handoff from Wi-Fi to cellular, or a corporate network that blocks the path the negotiation counted on.

I build and maintain the voice and video calling SDK the app depends on. It’s a hardened WebRTC layer that lives as its own package, so I can version it, debug it and reason about it without touching the rest of the app.

• Native call experience: incoming calls surface through the platform’s own call UI, so they ring, answer and land in call history like a phone call, including when the app isn’t running.
• State that survives real networks: call state holds across backgrounding, network handoffs and reconnects on iOS, Android, macOS, Windows and Web, each with its own rules about what a backgrounded app may do.
• Debuggable in production: call failures resist local reproduction, so the SDK emits structured, tagged logs that let me reconstruct a failed call from a customer’s log file.

When calling breaks, I search one package instead of the whole app.