## Documentation Index

Fetch the complete documentation index at: [/llms.txt](https://docs.cognigy.com/llms.txt)

Use this file to discover all available pages before exploring further.

Emitted when the SDK begins establishing a WebSocket connection to the SIP server.

## Category

Connection

## Callback Parameters

None.

## Example

```javascript
client.on('connecting', () => {
  console.log('Connecting to SIP server...');
});
```

## More Information

- [connected](https://docs.cognigy.com/click-to-call/sdk/event-reference/connected)
- [registered](https://docs.cognigy.com/click-to-call/sdk/event-reference/registered)
- [connect](https://docs.cognigy.com/click-to-call/sdk/api-reference/connect)

Last modified on April 21, 2026