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Getting Started

By the end of this page a LiveKit agent answers a Microsoft Teams call. You need Node.js >= 20, a LiveKit server (Cloud project or self-hosted) with an API key/secret, a LiveKit agent, and a StandIn identity (the sandbox tier is enough to try it).

1. Register your agent for explicit dispatch

Section titled “1. Register your agent for explicit dispatch”

Any LiveKit agent works unchanged. Register it with an agent name so the bridge can dispatch it into the per-call room. This is LiveKit’s recommended model.

# Python (livekit-agents >= 1.0)
from livekit.agents import cli, WorkerOptions
if __name__ == "__main__":
cli.run_app(WorkerOptions(entrypoint_fnc=entrypoint, agent_name="standin-agent"))
// Node (@livekit/agents)
cli.runApp(new WorkerOptions({ agent: fileURLToPath(import.meta.url), agentName: "standin-agent" }));

That agent_name is what you pass to the bridge as LIVEKIT_AGENT_NAME.

Run it directly:

Terminal window
LIVEKIT_URL=wss://your-project.livekit.cloud \
LIVEKIT_API_KEY=API... \
LIVEKIT_API_SECRET=... \
LIVEKIT_AGENT_NAME=standin-agent \
WORKER_SHARED_SECRET=... \
npx @komaa/livekit-msteams-bridge

Or embed it in your own project:

Terminal window
npm install @komaa/livekit-msteams-bridge
import { loadConfig, startServer } from "@komaa/livekit-msteams-bridge";
startServer(loadConfig()); // same env variables as the CLI

Every option is an environment variable; the package ships a commented .env.example, and the Configuration Reference documents each one. The bridge listens on 0.0.0.0:8080 by default and exposes GET /healthz for liveness.

WORKER_SHARED_SECRET comes from StandIn in the next step.

StandIn is the hosted service that joins the Teams call and dials into your bridge. Pick a tier at standin.komaa.com (sandbox for an instant trial), pair, and you get a shared secret.

  1. Put the secret in WORKER_SHARED_SECRET (both sides must match exactly).
  2. Point the identity’s agent WebSocket URL at your bridge, for example wss://lk-bridge.example.com:8080/voice/msteams/stream. StandIn appends /{callId} per call.
  3. Restart the bridge if you changed the env.

StandIn dials in from the internet, so a laptop or private host needs a public URL. A tunnel gives you one and terminates TLS (so you get wss:// for free). Run one pointing at port 8080, then use the wss://.../voice/msteams/stream form of the printed host:

Tailscale Funnel:

Terminal window
tailscale funnel --bg --https=8080 8080

Cloudflare Tunnel:

Terminal window
cloudflared tunnel --url http://localhost:8080

ngrok:

Terminal window
ngrok http 8080

For a fixed production host use an ingress or load balancer that terminates TLS in front of the bridge. See Connecting to StandIn for the full detail. Never give StandIn a plain ws:// URL outside local testing.

Call your Teams bot (or join the sandbox meeting). In the bridge logs you should see the call arrive, the room open, the agent dispatched, and the relay start:

INFO [server] worker connected for call 19:meeting_ab… (1/64)
INFO [call:19:meeting_ab] session.start (direction=inbound, recording=unknown)
INFO [call:19:meeting_ab] LiveKit room "msteams-19:meeting_ab…" joined (agent "standin-agent" dispatched)
INFO [call:19:meeting_ab] subscribed to agent audio from "standin-agent"
INFO [call:19:meeting_ab] LiveKit room "msteams-19:meeting_ab…" relaying

Speak, and the agent answers in the room; the bridge relays its audio back to Teams. If the call connects but something is off, Troubleshooting maps the common failures (401 handshake, agent never joins, silent audio) to their cause.