here is the answer..... can u pls help me to retrieve message from mobile to java program... import java.io.*; import java.util.*; import javax.comm.*;

public class GSMConnect implements SerialPortEventListener, CommPortOwnershipListener {

private String comPort = "COM3"; // This COM Port must be connect with GSM Modem or your mobile phone private String messageString = ""; private CommPortIdentifier portId = null; private Enumeration portList; private InputStream inputStream = null; private OutputStream outputStream = null; private SerialPort serialPort;

/** Creates a new instance of GSMConnect */ public GSMConnect(String comm) {

this.comPort = comm;

}

public boolean init() { portList = CommPortIdentifier.getPortIdentifiers(); while (portList.hasMoreElements()) { portId = (CommPortIdentifier) portList.nextElement(); if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) { if (portId.getName().equals(comPort)) { System.out.println("init"); return true; } } } return false; }

public void checkStatus() { send("AT+CREG?\r\n"); }

public void dial(String phoneNumber) { try { //dial to this phone number messageString = "ATD" + phoneNumber + ";\n\r"; outputStream.write(messageString.getBytes()); } catch (IOException e) { e.printStackTrace(); } }

public void send(String cmd) { try { outputStream.write(cmd.getBytes()); } catch (IOException e) { e.printStackTrace(); } }

public void sendMessage(String phoneNumber, String message) { send("AT+CMGS=\"" + phoneNumber + "\"\r\n"); send(message + '\032'); }

public void hangup() { send("ATH\r\n"); }

public void connect() throws NullPointerException { if (portId != null) { try { portId.addPortOwnershipListener(this); serialPort = (SerialPort) portId.open("MobileGateWay", 2000); } catch (PortInUseException e) { e.printStackTrace(); }

  try {
    inputStream = serialPort.getInputStream();
    outputStream = serialPort.getOutputStream();
  } catch (IOException e) {
    e.printStackTrace();
  }

  try {
    /** These are the events we want to know about*/
    serialPort.addEventListener(this);
    serialPort.notifyOnDataAvailable(true);
  } catch (TooManyListenersException e) {
    e.printStackTrace();
  }

//Register to home network of sim card

  send("ATZ\r\n");

} else {
  throw new NullPointerException("COM Port not found!!");
}

}

public void serialEvent(javax.comm.SerialPortEvent serialPortEvent) { switch (serialPortEvent.getEventType()) { case SerialPortEvent.BI: case SerialPortEvent.OE: case SerialPortEvent.FE: case SerialPortEvent.PE: case SerialPortEvent.CD: case SerialPortEvent.CTS: case SerialPortEvent.DSR: case SerialPortEvent.RI: case SerialPortEvent.OUTPUTBUFFEREMPTY: case SerialPortEvent.DATA_AVAILABLE:

    byte[] readBuffer = new byte[2048];
    try {
      while (true)
      {
        int numBytes = inputStream.read(readBuffer);
      }

//print response message //System.out.print(new String(readBuffer)); } catch (IOException e) { } break; } }

public void ownershipChange(int type) { switch (type) { case CommPortOwnershipListener.PORT_UNOWNED: System.out.println(portId.getName() + ": PORT_UNOWNED"); break; case CommPortOwnershipListener.PORT_OWNED: System.out.println(portId.getName() + ": PORT_OWNED"); break; case CommPortOwnershipListener.PORTOWNERSHIPREQUESTED: System.out.println(portId.getName() + ": PORT_INUSED"); break; }

}

public static void main(String args[]) { GSMConnect gsm = new GSMConnect("COM3"); if (gsm.init()) { try { gsm.connect(); gsm.checkStatus(); Thread.sleep(5000); gsm.sendMessage("+9400530373", "hai dis is test"); //gsm.dial("+9400530373"); Thread.sleep(20000); gsm.hangup(); // gsm.dial("+9400530373"); } catch (Exception e) { e.printStackTrace(); } } else { System.out.println("Can't init this card"); } } }

if u hav any doubt regarding dis contact on my mail anadplm@gmail.com