## Creates and Returns a New `WebRTCClient` Instance

This is the main entry point of the SDK.

## Signature

```
import { createWebRTCClient } from '@cognigy/click-to-call-sdk';

const client = await createWebRTCClient(config: WebRTCClientConfig);
```

## Parameters

| Parameter | Type | Description | Required |
| --- | --- | --- | --- |
| `config` | [`WebRTCClientConfig`](https://docs.cognigy.com/click-to-call/sdk/api-reference/types#webrtcclientconfig) | Configuration object for the client. | Yes |

## Returns

`Promise<WebRTCClient>` — a configured client instance ready to connect and make calls.

## Example

```
import { createWebRTCClient } from '@cognigy/click-to-call-sdk';

const client = await createWebRTCClient({
  endpointUrl: 'https://your-api.com/voice-connect-config',
  userId: 'user-123',
});
```

### With Custom ICE Servers

```
const client = await createWebRTCClient({
  endpointUrl: 'https://your-api.com/voice-connect-config',
  userId: 'user-123',
  pcConfig: {
    iceServers: [
      { urls: 'stun:stun.l.google.com:19302' },
      { urls: 'turn:your-turn-server.com:3478', username: 'user', credential: 'password' }
    ]
  }
});
```

## More Information

- [WebRTCClientConfig](https://docs.cognigy.com/click-to-call/sdk/api-reference/types#webrtcclientconfig)
- [checkWebRTCSupport](https://docs.cognigy.com/click-to-call/sdk/api-reference/check-click-to-call-support)

Last modified on April 21, 2026.