FSClient.Call.Call C# (CSharp) Méthode

        public Call()
        {
            PropertyChanged += Call_PropertyChanged;
            start_time = DateTime.Now;
            if (duration_timer == null)
                duration_timer = new System.Threading.Timer(DurationTimerFired, null, 1000, 1000);
            if (broker == null)
                broker = Broker.get_instance();
            visibility = Visibility.Visible;
        }