In Deferred Synchronous Invocation, the client invokes the request, continues processing while the request in dispatched, and later collects the response. Only dynamic invocation supports deferred synchronous communication. In deferred synchronous communication, the CORBA client application sends the request and is free to do other work. Periodically, the CORBA client application checks to see if the request has completed; when the request has completed, the CORBA client application makes use of the result of that request.