Help connecting to my sip server using sip phone plugin on openfire

hi

i have created my own sip server using sip servlet api and deployed onto sailfin application server now i m trying to connect to my sip server from openfire server i installed the sip phone plugin on openfire and entered all the details and added a new mapping for user when i click on test that mapping i am getting SIP Account problem: Timeout * Attempt timeout, please try again. *

  •                                                      when i check my sip server i am getting registration request and i am sending 200(OK) response back. Do i need to send anything more to work?*

I have Same Issue … I find no Solution on web …