public void configGPIO()
    {
        System.out.println("Config start.");
        ATCommand m_Cmd;
        CommConnection  commConn;
        InputStream     inStream;
        OutputStream    outStream;
        System.out.println("Available COM-Ports: " + System.getProperty("microedition.commports"));
        String strCOM = "comm:COM1;blocking=on;baudrate=115200";

        try {
            m_Cmd = new ATCommand(false);
            String Response = m_Cmd.send("AT^SSPI=\r");
            System.out.println("Response: " + Response);
            commConn = (CommConnection)Connector.open(strCOM);
            System.out.println("CommConnection(" + strCOM + ") opened");
            System.out.println("Real baud rate: " + commConn.getBaudRate());
            inStream  = commConn.openInputStream();
            outStream = commConn.openOutputStream();
            System.out.println("InputStream and OutputStream opened");

            Thread.sleep(2000);
            outStream.write(new String("<aD41800>\r").getBytes());
            Thread.sleep(2000);
            outStream.write(new String("<aD41900>\r").getBytes());
            Thread.sleep(2000);
            outStream.write(new String("#\r").getBytes());
            System.out.println("End of data stream");
            Thread.sleep(2000);
            outStream.close();
            commConn.close();

            Response = m_Cmd.send("AT+CFUN=1,1\r");
            System.out.println("Response: " + Response);
            Thread.sleep(10000);
        } catch (ATCommandFailedException ex) {
            ex.printStackTrace();
        } catch (IllegalStateException ex) {
            ex.printStackTrace();
        } catch (IOException ex) {
            ex.printStackTrace();
        } catch (InterruptedException ex) {
            ex.printStackTrace();
        }

    }