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Quickstart

Build your first AI voice agent, test it, connect a phone number, and call it — in about five minutes.

This quickstart walks you through the fastest path from a new account to a live agent that answers a real phone call. Each step links to a fuller page if you want more detail.

Before you start

You'll need:

  • An email address (or a Google account) to sign up.
  • A few facts about your business — its name, hours, and the services you offer.
Tip: You can build and test your agent entirely for free using the in-dashboard Talk tester before you buy a phone number. The number is only needed for step 6, when you want real callers to reach it.

1. Sign up

  1. Go to /signup.
  2. Create your account with email and password, sign in with Google, or use a magic email link.
  3. You'll land on the dashboard, with the main navigation on the left (Agents, Phone numbers, Campaigns, and more).

2. Create a voice agent

  1. In the left nav, open Agents.
  2. Create a new agent and choose Voice as the type (voice agents answer and make phone calls; chat agents run on a website widget).
  3. Give your agent a name. This opens the agent builder, which has tabs across the top: Agent, Voice, Transcriber, Knowledge Base, Tools, Actions, Conversational Flow, Branches, Analysis, and Settings. (The LLM model is chosen on the Agent tab and fine-tuned under Settings — there's no separate "Model" tab.)

3. Set the greeting, business info, and prompt

Everything in this step lives on the Agent tab.

  1. Fill in your business info — business name, industry, hours, services, and any FAQs. The agent uses these to answer callers accurately.
  2. Set the greeting (also called the first message). This is the opening line your agent says when it picks up, for example:
"Thanks for calling Acme Plumbing — how can I help you today?"
  1. Review or edit the system prompt. The prompt is fully editable and controls how your agent behaves, its tone, and what it should and shouldn't do.
Tip: For richer answers, add website URLs, files, or pasted text on the Knowledge Base tab. The agent grounds its replies in that content on the phone, on the web widget, and in the dashboard.

4. Pick a voice

  1. Open the Voice tab.
  2. Choose your provider — Cartesia is the platform default (Sonic voices); ElevenLabs is available if you bring your own key.
  3. Select a voice from the voice library, then set the speed (0.5–2.0) and language.
  4. Optionally add fallback voices, which are used if your primary voice fails.

5. Test it

  1. Use the Talk (or Test chat) option to try your agent right in the dashboard — no phone number required.
  2. Speak to it as a caller would. Replies stream sentence-by-sentence for low latency, and you can barge in (talk over the agent) just like on a real call.
  3. Go back and adjust the greeting, business info, prompt, or voice until it sounds right.

6. Get a phone number and attach the agent

  1. In the left nav, open Phone numbers.
  2. Buy a number directly from Telnyx, the built-in platform provider (billed via Stripe). You can also import an existing number.
Note: To use Twilio or SignalWire instead, connect your own account credentials under Integrations first; a tab then appears where you can import or buy numbers.
  1. Attach your voice agent to the number. Inbound calls to that number will now route to your agent.

7. Call it

  1. Dial your new number from any phone.
  2. Your agent answers with the greeting you set, grounded in your business info, knowledge base, and prompt.
  3. Review how it went under History, which stores past calls and chats with full transcripts.

Next steps

  • Agents — go deeper on the builder tabs and prompt design.
  • Knowledge Base — ground your agent in your own content.
  • Tools — let your agent transfer to a human, send SMS, or book appointments.
  • Phone numbers — buy, import, and attach numbers.
  • Campaigns — run outbound calling from your number.
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