How to use LogonAs to logon to another AX server

                //test logon AX 
                System.Net.NetworkCredential nc = new System.Net.NetworkCredential("akason", "123abcd");
                using (Session session = new Session())
                {
                    try
                    {
                        session.LogonAs("akason", "AXDEV", nc, "DAV", "en-us", "02@AX12R3CU9:2713", "");
                        string result = session.isLoggedOn().ToString();
                    }
                    catch (Exception ex3)
                    {
                        logger.Error(ex3.ToString());
                    }
                }