> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dialtu.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction to voice agents

> What Dialtu voice agents are and what they can do

A voice agent answers and places **phone calls** using AI. It listens, replies out loud, runs actions mid-call — querying your system, booking an appointment, transferring to a person — and when it hangs up it leaves the conversation classified and transcribed.

<Info>
  **📷 Screenshot needed** — the full voice agent editor, showing the three columns.

  Save to `/images/en/voice-agents/editor-overview.png`
</Info>

## The engine: Aurora

New voice agents use the **Aurora** engine. It's the only one available: the previous engine, **Solara**, is marked *Not available* when creating an agent and remains active only for agents that already used it.

This whole section describes **Aurora** agents.

## What a voice agent can do

<CardGroup cols={2}>
  <Card title="Answer inbound calls" icon="phone-arrow-down-left">
    With time-based routing: several agents can share one number as long as their hours don't overlap.
  </Card>

  <Card title="Place calls" icon="phone-arrow-up-right">
    From campaigns, from Salesflow, or one at a time.
  </Card>

  <Card title="Run actions" icon="screwdriver-wrench">
    Call an API, book on your calendar, transfer the call, hang up — or even send a WhatsApp mid-call.
  </Card>

  <Card title="Classify and extract" icon="tags">
    On hang-up it tags the call, can create the contact automatically, and can detect whether follow-up is needed.
  </Card>
</CardGroup>

## The editor at a glance

Creating or opening an agent drops you straight into the editor. **There's no step-by-step wizard** — it's a single screen with three columns.

| Column              | What's in it                                                                               |
| ------------------- | ------------------------------------------------------------------------------------------ |
| **Settings** (left) | Five collapsible groups: engine, voice, communication, speech & call, and disposition tags |
| **Prompt** (centre) | A single document holding the agent's instructions                                         |
| **Right panel**     | Three tabs: **Atlas**, **Test Call** and **Summary**                                       |

The top bar holds the name, the **Active / Paused** state, the estimated per-minute price, and the **FAQ**, **Tools** and **AI Features** buttons.

Both side columns collapse, and the editor remembers how you left them.

## What to know before you start

<Warning>
  **Saving publishes immediately.** There is no server-side draft: the moment you press *Update Agent*, the agent in production changes.

  The **Draft saved** chip you see in the editor is an autosave **in your browser**, not a server-side version. It only stops you losing your typing if you close the tab.
</Warning>

<Note>
  There's also **no version history** — you can't roll back to an earlier configuration. If you're making big changes to an agent that's handling live calls, consider **duplicating** it and working on the copy.
</Note>

## Suggested path

<CardGroup cols={2}>
  <Card title="Create your first voice agent" icon="plus" href="/en/voice-agents/create-agent">
    The minimum fields to get an agent that can call.
  </Card>

  <Card title="The prompt and variables" icon="pen-to-square" href="/en/voice-agents/prompt">
    How you instruct it and how to personalise per customer.
  </Card>

  <Card title="Voice, call and AI features" icon="sliders" href="/en/voice-agents/configure">
    Language, voice, silence, voicemail, and post-call extraction.
  </Card>

  <Card title="Tools" icon="screwdriver-wrench" href="/en/voice-agents/create-tools">
    The seven tool types and how they attach to an agent.
  </Card>

  <Card title="Test and activate" icon="circle-play" href="/en/voice-agents/test-publish">
    The test panel and how an agent goes live.
  </Card>

  <Card title="Phone numbers" icon="phone" href="/en/getting-started/phone-numbers">
    How to get the number the agent needs in order to call.
  </Card>
</CardGroup>