I am required to develop an application that can send MMS from PC to handphone by using Java. I learnt that to be able to do that, I can use Nokia MMS java lib to compose the MMS and use WAP stack to send it. I am using open source jWAP to send the file to the WAP gateway which is my local telco. there is no error in my program, I can send smoothly but i can not get the response from them nor I receive something on my handphone. Can you tell me what's wrong with my program?