[Home](./index.md) > [sip.js](./sip.js.md) > [OutgoingSubscribeRequestDelegate](./sip.js.outgoingsubscriberequestdelegate.md) > [onNotifyTimeout](./sip.js.outgoingsubscriberequestdelegate.onnotifytimeout.md) ## OutgoingSubscribeRequestDelegate.onNotifyTimeout() method Timed out waiting to receive the initial subscription creating NOTIFY in response to this request. Called for out of dialog SUBSCRIBE requests only (not called for re-SUBSCRIBE requests). Signature: ```typescript onNotifyTimeout?(): void; ``` Returns: `void`