[Home](./index.md) > [sip.js](./sip.js.md) > [SubscriptionDelegate](./sip.js.subscriptiondelegate.md) > [onNotify](./sip.js.subscriptiondelegate.onnotify.md) ## SubscriptionDelegate.onNotify() method Called upon receiving an incoming in dialog NOTIFY request. Signature: ```typescript onNotify(notification: Notification): void; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | notification | Notification | A notification. See [Notification](./sip.js.notification.md) for details. | Returns: `void`