Part II: Developing Outbound Applications - Get Call Status
                To get the call status, use the following:
                
                    - if (!
                            VgateClient::GetCallStatus(callId, log, true)) {
                                AfxMessageBox(VgateClient::GetLastError());
                                return;
                            }
                            
                            if (log.GetSize() == 0)
                                continue; // still in progress
                            
                            // last one is the final status
                            rec = (VgateCallRecord*)log.GetAt(log.GetSize()-1);
                          
                
                The call status and message can be accessed from the
                    VgateCallRecord. There might be more than one call records because
                    of retries.
                Once the call is made or failed, you should clean up the call
                    request and other call specific files on the gateway.
                
                    - 
                            VgateClient::RemoveCall(callId);
                            VgateClient::RemoveFile(targetdir + "\\callnow.vxml");