[Home](./index.md) > [sip.js](./sip.js.md) > [SessionDelegate](./sip.js.sessiondelegate.md) > [onInvite](./sip.js.sessiondelegate.oninvite.md) ## SessionDelegate.onInvite() method Called upon receiving an incoming in dialog INVITE request. Signature: ```typescript onInvite?(request: IncomingRequestMessage, response: string, statusCode: number): void; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | request | IncomingRequestMessage | | | response | string | | | statusCode | number | | Returns: `void`