Jain Sip Applet Phone Problems

Hi,

I am working on Jain Sip Applet Phone(JSAP) right now. I have tested it and getting some problems and wanna share with you all.If anyone can solve my problem then please do reply. My problem is like using JSAP application packets can be received at port but cant transmit voice and as i have checked other softphones I come to know that Receiver and Transmitter must work on same port but when i allocated same port for both, I got error like port is already in use.

And one more problem is that packets are coming at the port but NewReceiveStreamEvent is not triggered so update method for this event will not be called. That's why I am not able to get voice. As I am thinking may be receiver is working properly but it is listening on another port that's why it cant identify that packets are coming and cant generate NewReceiveStreamEvent.

So If anyone knows what i should do then please do reply as soon as possible.It's really very urgent.