/// <summary> показать звонок </summary>
        public static void ShowCall(ViewModelCallActive viewModelCallActive)
        {
            if (viewModelCallActive == null)
            {
                return;
            }

            WindowMain.ShowInRightWorkspaceFront(new ViewCallActive(viewModelCallActive));
        }
        /// <summary> Исходящий звонок </summary>
        public static void OutgoingCall(string number)
        {
            if (String.IsNullOrWhiteSpace(number))
            {
                return;
            }

            WindowMain.ShowInRightWorkspaceFront(new ViewCallActive(number));
        }
        /// <summary> Исходящий звонок </summary>
        public static void OutgoingCall(ModelContact modelContact)
        {
            if (modelContact == null)
            {
                return;
            }

            WindowMain.ShowInRightWorkspaceFront(new ViewCallActive(modelContact));
        }
 /// <summary> Принять звонок </summary>
 public static void IncomingCall()
 {
     WindowMain.ShowInRightWorkspaceFront(new ViewCallActive());
 }