diff --git a/Essentials Devices Common/Essentials Devices Common/Codec/iHasCallFavorites.cs b/Essentials Devices Common/Essentials Devices Common/Codec/iHasCallFavorites.cs
index 5eb2d99f..e6bcce13 100644
--- a/Essentials Devices Common/Essentials Devices Common/Codec/iHasCallFavorites.cs	
+++ b/Essentials Devices Common/Essentials Devices Common/Codec/iHasCallFavorites.cs	
@@ -6,7 +6,7 @@ using Crestron.SimplSharp;
 
 namespace PepperDash.Essentials.Devices.Common.Codec
 {
-    public interface iHasCallFavorites
+    public interface IHasCallFavorites
     {
         CodecCallFavorites CallFavorites { get; }
     }
diff --git a/Essentials Devices Common/Essentials Devices Common/Codec/iHasDialer.cs b/Essentials Devices Common/Essentials Devices Common/Codec/iHasDialer.cs
index cf8d95ea..f179a269 100644
--- a/Essentials Devices Common/Essentials Devices Common/Codec/iHasDialer.cs	
+++ b/Essentials Devices Common/Essentials Devices Common/Codec/iHasDialer.cs	
@@ -24,16 +24,4 @@ namespace PepperDash.Essentials.Devices.Common.Codec
 
         BoolFeedback IncomingCallFeedback { get; }
     }
-
-
-    public interface IHasDirectory
-    {
-
-    }
-
-    public interface IHasObtp
-    {
-
-        // Upcoming Meeting warning event
-    }
 }
\ No newline at end of file
diff --git a/Essentials Devices Common/Essentials Devices Common/Codec/iHasDirectory.cs b/Essentials Devices Common/Essentials Devices Common/Codec/iHasDirectory.cs
index f10af51c..ba1c709b 100644
--- a/Essentials Devices Common/Essentials Devices Common/Codec/iHasDirectory.cs	
+++ b/Essentials Devices Common/Essentials Devices Common/Codec/iHasDirectory.cs	
@@ -9,7 +9,7 @@ using PepperDash.Essentials.Devices.Common.VideoCodec;
 
 namespace PepperDash.Essentials.Devices.Common.Codec
 {
-    public interface iHasDirectory
+    public interface IHasDirectory
     {
         event EventHandler<DirectoryEventArgs> DirectoryResultReturned;
 
diff --git a/Essentials Devices Common/Essentials Devices Common/VideoCodec/CiscoCodec/CiscoCodec.cs b/Essentials Devices Common/Essentials Devices Common/VideoCodec/CiscoCodec/CiscoCodec.cs
index c770bad4..c9b6d7b2 100644
--- a/Essentials Devices Common/Essentials Devices Common/VideoCodec/CiscoCodec/CiscoCodec.cs	
+++ b/Essentials Devices Common/Essentials Devices Common/VideoCodec/CiscoCodec/CiscoCodec.cs	
@@ -20,7 +20,7 @@ namespace PepperDash.Essentials.Devices.Common.VideoCodec.Cisco
 {
     enum eCommandType { SessionStart, SessionEnd, Command, GetStatus, GetConfiguration };
 
-    public class CiscoCodec : VideoCodecBase, IHasCallHistory, iHasCallFavorites, iHasDirectory, IHasScheduleAwareness
+    public class CiscoCodec : VideoCodecBase, IHasCallHistory, IHasCallFavorites, IHasDirectory, IHasScheduleAwareness
     {
         public event EventHandler<EventArgs> UpcomingMeetingWarning;