HoloToolkit Sharing - How can I create persistent session from client?

Hi,
I'm creating HoloToolkit Sharing Service session from C# console application.

Following is the Main function code:

using (XToolsApp xToolsApp = new XToolsApp())
{
Timer timer = new Timer(60);
timer.Elapsed += (source, e) => { xToolsApp.Update(); };
timer.Start();

            NetworkConnectionData networkConnectionData = new NetworkConnectionData(xToolsApp)
            {
                UserName = "TEST_USER",
                ServerAddress = "localhost:20602",
                ViewerAddress = "localhost:20603"
            };
            xToolsApp.SessionManagerListener.SessionAdded += (session) =>
            {
                if (session.GetName().GetString().Equals("Default", StringComparison.OrdinalIgnoreCase))
                {
                    xToolsApp.CreateSession("TEST_SESSION", SessionType.PERSISTENT);
                }
            };
    Console.ReadLine();
        }

In above code, the statement "xToolsApp.CreateSession("TEST_SESSION", SessionType.PERSISTENT);" calls the following function.

public bool CreateSession(string sessionName, SessionType sessionType)
{
XString nameXString = new XString(sessionName);
LogWriteLine("Creating Session " + sessionName);
if (!this.SessionManager.CreateSession(nameXString, sessionType))
{
LogWriteLine("Failed to request a new session!");
return false;
}
return true;
}

Further, in above code, the statement "this.SessionManager.CreateSession(nameXString, sessionType)" calls the following function, part of HoloToolkit.Sharing namespace's auto generated SessionManager.cs class

public virtual bool CreateSession(XString sessionName, SessionType type) {
bool ret = SharingClientPINVOKE.SessionManager_CreateSession__SWIG_1(swigCPtr, XString.getCPtr(sessionName), (int)type);
return ret;
}

But it is still creating ADHOC session (not PERSISTENT). What should I do to create PERSISTENT session?