BackgroundProcesses.SpineClass.MonitorCallState C# (CSharp) Method

        private void MonitorCallState()
        {
            try
            {
                PhoneCallManager.CallStateChanged += (o, args) =>
                {
                    DoesPhoneCallExist = PhoneCallManager.IsCallActive || PhoneCallManager.IsCallIncoming;
                    ActivePhoneCallStateChanged?.Invoke();
                };
            }
            catch (Exception e)
            {
                Debug.WriteLine(e);
            }
        }