Sending SMS to a mobile app from smpp server

Question

Hi frndz
I have a j2me application which is listening to port number 1581
So, any message for port number 1581 will be directed to my j2me application,
problem is how can I send an SMS to a specific port number using SMPP server so my j2me app. receives the msg.
I have my own SMPP server through which I am able to send simple messages
so what modification required to send messages to a particular port
thanks
alpesh

Answer 1

Thanks Senthil
I tried two methods for sending msgs to a specific port from SMPP server
(I) setting up the optional parameter (TLV values)
The Code is:
request.setDestAddr(ton, npi,mobile_no );
request.setShortMessage("This msg is on port number 1581");
request.setDestinationPort((short)0x62D); // HEX for 1581
request.setSourcePort((short)0000);
request.setReplaceIfPresentFlag(replaceifpresentflag);
request.setRegisteredDelivery(registeredDelivery);
(II) setting UDH parameter
The Code is:
// setting UDH parameter CODE
ByteBuffer msgUDH=new ByteBuffer();
msgUDH.appendByte((byte)6);
msgUDH.appendByte((byte)5);
msgUDH.appendByte((byte)4);
msgUDH.appendShort((short)0x1581);
msgUDH.appendShort((short)0x0000);
// appending msg to the UDH header
message="Sending Message on Specified Port";
msgUDH.appendBuffer(new ByteBuffer(message.getBytes()));
// submitting the msg
request.setDestAddr(ton, npi,mobile_no );
request.setMessagePayload(msgUDH);
request.setProtocolId((byte)0xF5);
request.setEsmClass((byte)(Data.SM_UDH_GSM));
request.setReplaceIfPresentFlag(replaceifpresentflag);
request.setRegisteredDelivery(registeredDelivery);
I am submitting the message using any of the above method, message goes to mobile phone default Inbox, not to my J2ME app.
any Idea, what is wrong?
thanks
alpesh