This path takes you from nothing to a production AI voice agent — one that answers or places calls, listens and talks in real time, calls your tools, and hands off to a human when it needs to. The sidebar now shows just these steps; work through them top to bottom with Next.

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What you’ll build

An agent that connects to a call over QUIC, runs a speech pipeline (or a single speech-to-speech model), detects turns and barge-in, invokes tools mid-call, and reaches callers over the phone network or the browser.
1

See the shape of it

Voice overview — the two primitives (calls + audio bridge) and the wire model.
2

Ship a hello-world agent

Managed-cloud quickstart — keys, install, and your first call with an agent attached.
3

Choose a runtime

Agent runtime, then wire providers with BYO ASR / LLM / TTS (or a speech-to-speech model).
4

Make it feel human

Turn detection & barge-in and tool calling.
5

Reach real callers

Outbound and inbound calls.
6

Put it together & watch it

Building voice agents end-to-end, then observability.
Building a full contact center with human agents and queues too? Switch to the Contact Center path.