## 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 SIP client successfully registers with the SIP server. After this event is emitted, the client is ready to make calls using [`startCall()`](https://docs.cognigy.com/click-to-call/sdk/api-reference/start-call).

## Category

Connection

## Callback Parameters

None.

## Example

```javascript
client.on('registered', () => {
  console.log('SIP client registered — ready to make calls');
});
```

## More Information

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

Last modified on April 21, 2026