Sending SIP packet over TCP

Hi Guys,

I am facing a problem in following scenario on WinCE 5.0. Please let me know if you got an answer for this ASAP.

In SIP Client
1.  I have opened server TCP and UDP on 5060 port for polling responses aswell as request
2.  To send a SIP packet, I have opened a TCP client socket 5060 for destination. I got a socket descriptor as 9

SIP request goes on dest port as 5060, src port as 1997.
Server is responding on src port 1997. Hence my polling is failing as it is for TCP and UDP sockets.

Src port 1997 is not constant. It is just random. for me to poll, I need socket descriptor. How to get this
logical port number given TCP? If I can get this, I can create a socket and get the descriptor and add to
polling list

Waiting a quick response if possible.

Thanks !
Rathod.

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