diff --git a/essentials-framework/Essentials Core/PepperDashEssentialsBase/Display/MockDisplay.cs b/essentials-framework/Essentials Core/PepperDashEssentialsBase/Display/MockDisplay.cs
index dcdba6d8..eb529376 100644
--- a/essentials-framework/Essentials Core/PepperDashEssentialsBase/Display/MockDisplay.cs	
+++ b/essentials-framework/Essentials Core/PepperDashEssentialsBase/Display/MockDisplay.cs	
@@ -59,6 +59,9 @@ namespace PepperDash.Essentials.Core
 
 			VolumeLevelFeedback = new IntFeedback(() => { return _FakeVolumeLevel; });
 			MuteFeedback = new BoolFeedback("MuteOn", () => _IsMuted);
+
+            WarmupTime = 10000;
+            CooldownTime = 5000;
 		}
 
 		public override void PowerOn()
diff --git a/essentials-framework/Essentials Devices Common/Essentials Devices Common/Codec/iHasScheduleAwareness.cs b/essentials-framework/Essentials Devices Common/Essentials Devices Common/Codec/iHasScheduleAwareness.cs
index 5e2b1c23..24f1968b 100644
--- a/essentials-framework/Essentials Devices Common/Essentials Devices Common/Codec/iHasScheduleAwareness.cs	
+++ b/essentials-framework/Essentials Devices Common/Essentials Devices Common/Codec/iHasScheduleAwareness.cs	
@@ -10,13 +10,14 @@ using Newtonsoft.Json;
 
 namespace PepperDash.Essentials.Devices.Common.Codec
 {
+    [Flags]
     public enum eMeetingEventChangeType
     {
         Unknown = 0,
-        MeetingStartWarning,
-        MeetingStart,
-        MeetingEndWarning,
-        MeetingEnd
+        MeetingStartWarning = 1,
+        MeetingStart = 2,
+        MeetingEndWarning = 4,
+        MeetingEnd = 8
     }
 
     public interface IHasScheduleAwareness
@@ -83,50 +84,69 @@ namespace PepperDash.Essentials.Devices.Common.Codec
             _scheduleChecker = new CTimer(CheckSchedule, null, pollTime, pollTime);
         }
 
+        /// <summary>
+        /// Helper method to fire MeetingEventChange.  Should only fire once for each changeType on each meeting
+        /// </summary>
+        /// <param name="changeType"></param>
+        /// <param name="meeting"></param>
         private void OnMeetingChange(eMeetingEventChangeType changeType, Meeting meeting)
         {
-            var handler = MeetingEventChange;
-            if (handler != null)
+            Debug.Console(2, "*****************OnMeetingChange.  id: {0} changeType: {1}**********************", meeting.Id, changeType);
+            if (changeType != (changeType & meeting.NotifiedChangeTypes))
             {
-                handler(this, new MeetingEventArgs() { ChangeType = changeType, Meeting = meeting });
+                // Add this change type to the NotifiedChangeTypes
+                meeting.NotifiedChangeTypes |= changeType;
+
+                var handler = MeetingEventChange;
+                if (handler != null)
+                {
+                    handler(this, new MeetingEventArgs() { ChangeType = changeType, Meeting = meeting });
+                }
+            }
+            else
+            {
+                Debug.Console(2, "Meeting: {0} already notified of changeType: {1}", meeting.Id, changeType);
             }
         }
 
+
+        /// <summary>
+        /// Checks the schedule to see if any MeetingEventChange updates should be fired
+        /// </summary>
+        /// <param name="o"></param>
         private void CheckSchedule(object o)
         {
-            //  Iterate the meeting list and check if any meeting need to do anythingk
+            //  Iterate the meeting list and check if any meeting need to do anything
 
             const double meetingTimeEpsilon = 0.05;
             foreach (var m in Meetings)
             {
                 var changeType = eMeetingEventChangeType.Unknown;
 
-                //Debug.Console(2, "Math.Abs(m.TimeToMeetingEnd.TotalMinutes) = {0}", Math.Abs(m.TimeToMeetingEnd.TotalMinutes));
-                if (_previousChangeType != eMeetingEventChangeType.MeetingStartWarning && m.TimeToMeetingStart.TotalMinutes <= m.MeetingWarningMinutes.TotalMinutes && m.TimeToMeetingStart.Seconds > 0)       // Meeting is about to start
+                if (eMeetingEventChangeType.MeetingStartWarning != (m.NotifiedChangeTypes & eMeetingEventChangeType.MeetingStartWarning) && m.TimeToMeetingStart.TotalMinutes <= m.MeetingWarningMinutes.TotalMinutes && m.TimeToMeetingStart.Seconds > 0)       // Meeting is about to start
                 {
-                    Debug.Console(2, "MeetingStartWarning. TotalMinutes: {0}  Seconds: {1}", m.TimeToMeetingStart.TotalMinutes, m.TimeToMeetingStart.Seconds);
+                    Debug.Console(2, "********************* MeetingStartWarning. TotalMinutes: {0}  Seconds: {1}", m.TimeToMeetingStart.TotalMinutes, m.TimeToMeetingStart.Seconds);
                     changeType = eMeetingEventChangeType.MeetingStartWarning;
                 }
-                else if (_previousChangeType != eMeetingEventChangeType.MeetingStart && Math.Abs(m.TimeToMeetingEnd.TotalMinutes) < meetingTimeEpsilon)           // Meeting Start
+                else if (eMeetingEventChangeType.MeetingStart != (m.NotifiedChangeTypes & eMeetingEventChangeType.MeetingStart) && Math.Abs(m.TimeToMeetingStart.TotalMinutes) < meetingTimeEpsilon)           // Meeting Start
                 {
-                    Debug.Console(2, "MeetingStart");
+                    Debug.Console(2, "********************* MeetingStart");
                     changeType = eMeetingEventChangeType.MeetingStart;
                 }
-                else if (_previousChangeType != eMeetingEventChangeType.MeetingEndWarning && m.TimeToMeetingEnd.TotalMinutes <= m.MeetingWarningMinutes.TotalMinutes && m.TimeToMeetingEnd.Seconds > 0)    // Meeting is about to end
+                else if (eMeetingEventChangeType.MeetingEndWarning != (m.NotifiedChangeTypes & eMeetingEventChangeType.MeetingEndWarning) && m.TimeToMeetingEnd.TotalMinutes <= m.MeetingWarningMinutes.TotalMinutes && m.TimeToMeetingEnd.Seconds > 0)    // Meeting is about to end
+                {
+                    Debug.Console(2, "********************* MeetingEndWarning. TotalMinutes: {0}  Seconds: {1}", m.TimeToMeetingEnd.TotalMinutes, m.TimeToMeetingEnd.Seconds);
                     changeType = eMeetingEventChangeType.MeetingEndWarning;
-                else if (_previousChangeType != eMeetingEventChangeType.MeetingEnd && Math.Abs(m.TimeToMeetingEnd.TotalMinutes) < meetingTimeEpsilon)             // Meeting has ended
+                }
+                else if (eMeetingEventChangeType.MeetingEnd != (m.NotifiedChangeTypes & eMeetingEventChangeType.MeetingEnd) && Math.Abs(m.TimeToMeetingEnd.TotalMinutes) < meetingTimeEpsilon)             // Meeting has ended
+                {
+                    Debug.Console(2, "********************* MeetingEnd");
                     changeType = eMeetingEventChangeType.MeetingEnd;
+                }
 
                 if (changeType != eMeetingEventChangeType.Unknown)
                 {
-                    // check to make sure this is not a redundant event for one that was fired last
-                    if (_previousChangedMeeting == null || (_previousChangedMeeting != m && _previousChangeType != changeType))
-                    {
-                        _previousChangeType = changeType;
-                        _previousChangedMeeting = m;
-
-                        OnMeetingChange(changeType, m);
-                    }
+                    OnMeetingChange(changeType, m);                    
                 }
             }
 
@@ -191,8 +211,8 @@ namespace PepperDash.Essentials.Devices.Common.Codec
             get
             {
                 var joinable = StartTime.AddMinutes(-MinutesBeforeMeeting) <= DateTime.Now
-                    && DateTime.Now <= EndTime; //.AddMinutes(-5);
-                Debug.Console(2, "Meeting Id: {0} joinable: {1}", Id, joinable);
+                    && DateTime.Now <= EndTime.AddMinutes(-5);
+                //Debug.Console(2, "Meeting Id: {0} joinable: {1}", Id, joinable);
                 return joinable;
             }
         }
@@ -205,6 +225,12 @@ namespace PepperDash.Essentials.Devices.Common.Codec
         [JsonProperty("calls")]
         public List<Call> Calls { get; private set; }
 
+        /// <summary>
+        /// Tracks the change types that have already been notified for
+        /// </summary>
+        [JsonIgnore]
+        public eMeetingEventChangeType NotifiedChangeTypes { get; set; }
+
         public Meeting()
         {
             Calls = new List<Call>();
diff --git a/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/MockVC/MockVC.cs b/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/MockVC/MockVC.cs
index b87f1fa8..ca199957 100644
--- a/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/MockVC/MockVC.cs	
+++ b/essentials-framework/Essentials Devices Common/Essentials Devices Common/VideoCodec/MockVC/MockVC.cs	
@@ -416,8 +416,8 @@ namespace PepperDash.Essentials.Devices.Common.VideoCodec
                         m.MinutesBeforeMeeting = 5;
                         m.Id = i.ToString();
                         m.Organizer = "Employee " + 1;
-						m.StartTime = DateTime.Now.AddMinutes(3).AddHours(i);
-						m.EndTime = DateTime.Now.AddHours(i).AddMinutes(55);
+						m.StartTime = DateTime.Now.AddMinutes(6).AddHours(i);
+						m.EndTime = DateTime.Now.AddHours(i).AddMinutes(16);
 						m.Title = "Meeting " + i;
                         m.Calls.Add(new Call() { Number = i + "meeting@fake.com"});
 						_CodecSchedule.Meetings.Add(m);