diff --git a/callback.cpp b/callback.cpp
index 0830f5cfd..adda35aab 100644
--- a/callback.cpp
+++ b/callback.cpp
@@ -237,6 +237,11 @@ void Callback::deleteInvitation() const
   ( new KMDeleteMsgCommand( sernum ) )->start();
 }
 
+bool Callback::exchangeCompatibleInvitations() const
+{
+  return GlobalSettings::self()->exchangeCompatibleInvitations();
+}
+
 QString Callback::sender() const
 {
   return mMsg->from();
diff --git a/callback.h b/callback.h
index 85f21fc07..5dda1ceb5 100644
--- a/callback.h
+++ b/callback.h
@@ -80,6 +80,7 @@ class KMAIL_EXPORT Callback {
     bool askForComment( KCal::Attendee::PartStat status ) const;
     bool deleteInvitationAfterReply() const;
     void deleteInvitation() const;
+    bool exchangeCompatibleInvitations() const;
 
     /**
       Closes the main window showing this message, if it's a secondary window.