***

## title: App users

App-user outbound calls are ideal for internal testing, QA automation, and browser/mobile Voice AI experiences.

## Setup flow

1. Create destination users in your application.
2. Start an outbound scenario (Control Panel run or API).
3. Pass destination username and caller identity in custom data.
4. Call the user with `VoxEngine.callUser(...)`.
5. After connect, bridge the call to your Voice AI connector.

```js title="App-user outbound leg"
const call = VoxEngine.callUser({
  username: destinationUser,
  callerid: callerId,
  displayName: "Voice AI Assistant",
});
```

## Voice AI notes

* This is the fastest loop for validating prompts, barge-in, and tool behavior.
* Use dedicated users/aliases per scenario so test logs stay clean.
* Reuse the same connector logic when you later move to PSTN, SIP, or WhatsApp.

## Links

* Users basics: [https://voximplant.com/docs/getting-started/basic-concepts/users](https://voximplant.com/docs/getting-started/basic-concepts/users)
* User outbound API (`callUser`): [https://voximplant.com/docs/references/voxengine/voxengine/calluser](https://voximplant.com/docs/references/voxengine/voxengine/calluser)

<Info title="Screenshots needed">
  - User creation and credential setup in Control Panel.
  - Outbound call run to app user and successful connect.
</Info>