***

title: Web & Native
subtitle: Use Voximplant users and SDKs for browser and mobile app calling
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## <Icon icon="fa-duotone fa-user" /> Overview

For web and mobile calling, create Voximplant app users and authenticate with Voximplant SDKs.
This is the standard path for in-app calls, authenticated customer sessions, and app-to-app voice AI experiences.

Core users guide:

* [Users basic concepts](https://voximplant.com/docs/getting-started/basic-concepts/users)

## <Icon icon="fa-duotone fa-user-plus" /> Create app users

You can create users in Control Panel or via Management API.

<Steps>
  <Step title="Open application users">
    In Control Panel, open **Applications**, select your app, then open **Users**.
    ![Create a user](https://files.buildwithfern.com/voximplant.docs.buildwithfern.com/76210ed99a894c91602b8bf9884ba1da18965d4fb1490c2502524aedfa5008c6/docs/assets/getting-started/users-create.png)
  </Step>

  <Step title="Configure user profile">
    Set username, password, and display name, then create the user.
    ![User editor](https://files.buildwithfern.com/voximplant.docs.buildwithfern.com/6ce8b0fd0ee28fae3bcd968403dcc9192dabb402beca3f315db4ba7376455bdf/docs/assets/getting-started/users-editor.png)
  </Step>

  <Step title="Use user alias in routing">
    Route inbound app-user calls by alias to the target Voice AI scenario.
  </Step>
</Steps>

## <Icon icon="fa-duotone fa-mobile-screen" /> SDK options

* [Web SDK guide](https://voximplant.com/docs/getting-started/platform/web)
* [iOS SDK guide](https://voximplant.com/docs/getting-started/platform/ios)
* [Android SDK guide](https://voximplant.com/docs/getting-started/platform/android)
* [React Native SDK guide](https://voximplant.com/docs/getting-started/platform/react-native)
* [Flutter SDK guide](https://voximplant.com/docs/getting-started/platform/flutter)

## <Icon icon="fa-duotone fa-arrow-up-right" /> Outbound specifics

Use `VoxEngine.callUser()` to place outbound calls to Voximplant user aliases.

```js title="Outbound to app user"
const call = VoxEngine.callUser({
  username: "alice",
  callerid: "voice-ai-app"
});
```

#### <icon icon="fa-duotone fa-solid fa-link" /> More information:

* [Processing calls in scenarios guide](https://voximplant.com/docs/guides/calls/scenarios)
* [VoxEngine Call class](https://voximplant.com/docs/references/voxengine/call)
* [Users basic concepts](https://voximplant.com/docs/getting-started/basic-concepts/users)
* [VoxEngine.callUser](https://voximplant.com/docs/references/voxengine/voxengine/calluser)
* [AddUser Management API](https://voximplant.com/docs/references/httpapi/users#adduser)
* [Platform SDK quickstart index](https://voximplant.com/docs/getting-started/platform)