[MyPhonePlugins.CRMPluginLoader]
    public class MyCRMPlugin
{
    private static MyCRMPlugin instance = null;
    private MyPhonePlugins.IMyPhoneCallHandler callHandler = null;

    [MyPhonePlugins.CRMPluginInitializer]
    public static void Loader(MyPhonePlugins.IMyPhoneCallHandler callHandler)
    {
        System.IO.File.WriteAllText("C:\\Temp\\phonestatus.txt", "Loader");
        instance = new MyCRMPlugin(callHandler);
    }

    private MyCRMPlugin(MyPhonePlugins.IMyPhoneCallHandler callHandler)
    {
        this.callHandler = callHandler;
        callHandler.OnCallStatusChanged += new MyPhonePlugins.CallInfoHandler(callHandler_OnCallStatusChanged);
        callHandler.OnMyPhoneStatusChanged += new MyPhonePlugins.MyPhoneStatusHandler(callHandler_OnMyPhoneStatusChanged);

    }

    private void callHandler_OnCallStatusChanged(object sender, MyPhonePlugins.CallStatus callinfo)
    {
        System.IO.File.WriteAllText("C:\\Temp\\phonestatus.txt", "callHandler_OnCallStatusChanged");
    }

    private void callHandler_OnMyPhoneStatusChanged(object sender, MyPhonePlugins.MyPhoneStatus status)
    {
        System.IO.File.WriteAllText("C:\\Temp\\phonestatus.txt", "callHandler_OnMyPhoneStatusChanged");
    }

    public MyPhonePlugins.CallStatus MakeCall(string destination)
    {
        System.IO.File.WriteAllText("C:\\Temp\\phonestatus.txt", "MakeCall");
        return callHandler.MakeCall(destination);
    }
}