public function IMS($session_id, $ims_xml) { if ($this->_isSessionValid($session_id)) { include_once 'classes/cs_connection_soap_ims.php'; $ims_object = new cs_connection_soap_ims($this->_environment); $this->_updateSessionCreationDate($session_id); return $ims_object->IMS($session_id, $ims_xml); } else { return new SoapFault('ERROR', 'Session (' . $session_id . ') not valid!'); } }