Warning message

Iam getting a warning .What does this message means .& how can i remove this message

Exactly what it says. It does not support something in the SDP message. I would not worry about it. I have seen this error in the past when some one was trying to send me video and I had the support for it turned off.

The problem iam facing is
whenever i am calling from xlite to my windows based sip application(vice versa) & call connects the first 10 seconds whatever a xlite client is saying to my application he is not able to hear. But whatever application client is saying to xlite client he is able to hear perfectly
After the first 10 seconds are over then there is a perfect communication between both the clients.

This message is shown only when i call from sip application to xlite.

any suggestion

Try contacting the provider for the software on the windows box.