showText(SMSTools.getSMSText(pdu)+ "\n");      pdu = "0791947101670000040485080039004010412121854024D737DB7C0EBBCF2E69D8BD6603C865D739DD22975DE3771B747DB3CDE7B0FB0C";      showText(SMSTools.getSMSText(pdu)+ "\n");    } // if    else if (cmd.equals("read SMS")) {      showText("read and decode all SMS from SIM\n\n");      try {        Port.open();        if (Msg.test() == false) {          showText("ERROR: Can't connect to mobile phone\n");        } // if      } // try      catch (Exception e) {showText("Error: Exception in read SIM: " + e);}      try {        n = Msg.getNoOfSMS();        showText("No. of stored SMS in SIM: " + Integer.toString(n) + "\n");        index = Msg.getIndexOfSMS();          // get a index list of stored SMS        n = -1;        do {          n++;          if (index[n] != 0) {          // found a guilty index for a SMS            i = index[n];            s = Msg.getSMS(i);            s = SMSTools.getSMSText(s);            showText("SMS No. " + index[n] + ": " + s + "\n");          } // if        } while (index[n] != 0);        Port.close();      }  // try      catch (Exception e) {        showText("Exception in Main: " + e);      }  // catch    } // else if    else if (cmd.equals("read ME Info")) {      showText("Get some information about the connected mobile phone\n\n");      try {        Port.open();        showText("Battery Status:      " + Msg.getBatteryStatus() + "\n");  // get battery status from ME        showText("Signal Quality:      " + Msg.getSignalQuality() + "\n");  // get signal quality from ME        Port.close();      }  // try      catch (Exception e) {        showText("Error: Exception in read ME Info: " + e);      }  // catch    } // else if    else if (cmd.equals("send SMS")) {      showText("send some SMS and eMails\n\n");      try {        Port.open();        Msg.sendSMS(EMAILDIALNO, TOA_NATIONAL, EMAILADR + "Testmail, PC send time: " + getFormatedDateTime());        Msg.sendSMS(SMSDIALNO, TOA_INTERNATIONAL, "Test-SMS, PC send time: " + getFormatedDateTime());        Msg.sendSMS(EMAILDIALNO, TOA_NATIONAL, EMAILADR + " Testmail");        Port.close();      }  // try      catch (Exception e) {        showText("Exception in Main: " + e);      }  // catch    } // else if    else if (cmd.equals("invest Runtime")) {      showText("Investigate run time of a SMS within the GSM network\n\n");      try {        Port.open();        showText("Delete all SMS from SIM\n");        Msg.deleteAllSMS();        sendtime = getLongTime();        sendtext = "Testmail for run time, PC send time: " + getFormatedDateTime();        receivetext ="";        loopbreak = false;        Msg.sendSMS (SMSDIALNO, TOA_NATIONAL, sendtext);    // send a SMS to the sending mobile phone        do {          Thread.sleep(500);                            // wait 500 msec          receivetime = getLongTime();          deltatime = (receivetime - sendtime)/1000;    // deltatime is in seconds          index = Msg.getIndexOfSMS();                  // get a index list of stored SMS          n = -1;          do {            n++;            if (index[n] != 0) {                        // found a guilty index for a SMS              receivetext = SMSTools.getSMSText(Msg.getSMS(index[n]));              i = receivetext.indexOf(SMSTEXTSIGN);              receivetext = receivetext.substring(i+1, receivetext.length());              if (sendtext.compareTo(receivetext) == 0) {                loopbreak = true;                             // received the same SMS as sended                break;              } // if            } // if          } while (index[n] != 0);          if (deltatime >= TIMEOUT) loopbreak = true;        } while (loopbreak == false);        if (deltatime >= TIMEOUT) showText("timeout of " + TIMEOUT + " s reached\n");        else  showText("actual run time of a SMS = " + deltatime + " s\n");        Port.close();      }  // try      catch (Exception e) {        showText("Exception in Main: " + e);      }  // catch    } // else if    else if (cmd.equals("AT Cmd.")) {      showText("send some AT commands and display the received raw data\n\n");      try {        Port.open();        showText("Mobile Phone Modell: " + Port.sendAT ("AT+CGMM"));  // get Modellinformation from ME        showText("Connection Status:   " + Port.sendAT ("AT+CREG?")); // get connection status to GSM net from ME        Port.close();      }  // try      catch (Exception e) {        showText("Error: Exception in AT Cmd.: " + e);      }  // catch    } // else if    else if (cmd.equals("Parse")) {      showText("parse received SMS, parsing is switched automatically off in " + TIMEOUT/1000 + " s\n\n");      loopbreak = false;      starttime = getLongTime();      try {        Port.open();        Msg.deleteAllSMS();        do {          showText("Delete all SMS from SIM\n");          index = Msg.getIndexOfSMS();                  // get a index list of stored SMS          n = -1;          do {            n++;            if (index[n] != 0) {                        // found a guilty index for a SMS              receivetext = SMSTools.getSMSText(Msg.getSMS(index[n]));              i = receivetext.indexOf(" ");              originateno = receivetext.substring(0, i);              i = receivetext.indexOf(SMSTEXTSIGN);              receivetext = receivetext.substring(i+1, receivetext.length());              showText("received SMS from: " + originateno + ", content: " + receivetext + "\n");              if (receivetext.indexOf(".on") == 0) {                showText("found command in SMS: .on\n");              } // if              else if (receivetext.indexOf(".off") == 0) {                showText("found command in SMS: .off\n");              } // else if              else if (receivetext.indexOf("get time") == 0) {                showText("found command in SMS: get time\n");                showText("send local time to the sender\n");                Msg.sendSMS(SMSDIALNO, TOA_INTERNATIONAL, "PC send time: " + getFormatedDateTime());              } // else if              else if (receivetext.indexOf("exit") == 0) {                showText("found command in SMS: exit\n");                loopbreak = true;              } // else if              else {    // unknown command                showText("no command found in SMS\n");                showText("send help information to the sender\n");                Msg.sendSMS(SMSDIALNO, TOA_INTERNATIONAL, "possible commands: .on, .off, get time, exit");              } // else            } // if          } while (index[n] != 0);          Msg.deleteAllSMS();          Thread.sleep(1000);                            // wait 1 sec          showText("time: " + getFormatedDateTime() + "\n\n");          deltatime = getLongTime() - starttime;           // deltatime is in milliseconds          if (deltatime >= TIMEOUT) loopbreak = true;        } while (loopbreak == false);        if (deltatime >= TIMEOUT) showText("timeout of " + TIMEOUT/1000 + " s reached");        Port.close();      }  // try      catch (Exception e) {        showText("Error: Exception in parsing SMS: " + e);      }  // catch    } // else if    else if (cmd.equals("create PDUs")) {      showText("creates PDUs for sending PDUs from a simple microcontroller to the mobile phone\n\n");      String dialno4SMS, dialno4Email, emailadr, message = new String();      dialno4SMS   = "01751082323";    // dialing number for SMS transmission, this is the number of the phone you want to send the SMS      dialno4Email = "8000";           // dialing number for eMail transmission, this is the number you have to dial if you want to convert a SMS into a e-Mail      emailadr     = "wolfgang.rankl@de.gi-de.de";   // eMail adress      message      = "et's geht's des glump";        // message to the receiver, maximal length is 160 characters      SMS.showText("Dialing Number for SMS:   " + dialno4SMS   + "\n");      SMS.showText("Dialing Number for EMail: " + dialno4Email + "\n");      SMS.showText("Email Adress:             " + emailadr     + "\n");      SMS.showText("Message:                  " + message      + "\n");      SMSTools smstools = new SMSTools();      byte[] pdu_byte = SMSTools.getPDUPart(dialno4SMS, TOA_INTERNATIONAL, message);  // build PDU for SMS      char[] pdu_char = SMSTools.toHexString(pdu_byte);      pdu = SMSTools.convertCharArray2String(pdu_char);      SMS.showText("PDU for SMS:              " + pdu          + "\n");      pdu_byte = SMSTools.getPDUPart(dialno4Email, TOA_NATIONAL, message);     // build PDU for eMail      pdu_char = SMSTools.toHexString(pdu_byte);      pdu = SMSTools.convertCharArray2String(pdu_char);      SMS.showText("PDU for EMail:            " + pdu          + "\n");    } // else if    else if (cmd.equals("Exit")) {      showText("\tExit Button pressed\n");      showText("Stop Program GUI\n");      System.exit(0);    } // else if    showText("-------------------------------------------\n");  } // actionPerformed /** main  *  @param args there will be no arguments for the main  */  public static void main(String [] args){    //--- build the GUI    SMS sms = new SMS();    sms.setLocation(0, 0);    sms.pack();    sms.setTitle("SMS Transceiver");    sms.setVisible(true);    showText("Start Program SMS Transceiver\n\n");  } // main} // class