[Home](./index.md) > [sip.js](./sip.js.md) > [ReferrerDelegate](./sip.js.referrerdelegate.md) > [onNotify](./sip.js.referrerdelegate.onnotify.md) ## ReferrerDelegate.onNotify() method Signature: ```typescript onNotify(notification: Notification): void; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | notification | Notification | | Returns: `void`