private void raiseIOException(String host,int port,String protocol){
  IOExceptionEvent ioError=new IOExceptionEvent(this,host,port,protocol);
  sipProvider.handleEvent(ioError,null);
  setState(SIPDialog.TERMINATED_STATE);
}

private void raiseIOException ( String host , int port , String protocol ) { IOExceptionEvent ioError = new IOExceptionEvent ( this , host , port , protocol ) ; sipProvider . handleEvent ( ioError , null ) ; setState ( SIPDialog . TERMINATED_STATE ) ; }
raise an io exception for asyncrhonous retransmission of responses
