[Home](./index.md) > [sip.js](./sip.js.md) > [SubscribeUserAgentClient](./sip.js.subscribeuseragentclient.md) > [onNotify](./sip.js.subscribeuseragentclient.onnotify.md) ## SubscribeUserAgentClient.onNotify() method Handle out of dialog NOTIFY assoicated with SUBSCRIBE request. This is the first NOTIFY received after the SUBSCRIBE request. Signature: ```typescript onNotify(uas: NotifyUserAgentServer): void; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | uas | NotifyUserAgentServer | User agent server handling the subscription creating NOTIFY. | Returns: `void`