Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -r1bff8e530735be63ba557b77557a0bc2ac4b37b2 -r533ecbb65cdd2d1c993bccae018223c0e8a6d55b
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 1bff8e530735be63ba557b77557a0bc2ac4b37b2)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 533ecbb65cdd2d1c993bccae018223c0e8a6d55b)
@@ -273,7 +273,13 @@
     checkForCommTimeouts();
 
     // Check ACK list for messages that need to be re-sent because they have not been ACK'd
-    checkPendingACKList();
+    checkPendingACKList();
+
+    if ( TRUE == hasDialinCheckInExpired() )
+    {
+        // It has been a while since the user logged in but not activity has been received from Dialin so set the tester's status to log out
+        setTesterStatusToLoggedOut();
+    }
 }
 
 /*********************************************************************//**
Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r1bff8e530735be63ba557b77557a0bc2ac4b37b2 -r533ecbb65cdd2d1c993bccae018223c0e8a6d55b
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 1bff8e530735be63ba557b77557a0bc2ac4b37b2)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 533ecbb65cdd2d1c993bccae018223c0e8a6d55b)
@@ -3437,6 +3437,19 @@
 
 /*********************************************************************//**
  * @brief
+ * The setTesterStatusToLoggedOut function sets the status of the tester to
+ * logged out.
+ * @details Inputs: none
+ * @details Outputs: testerLoggedIn
+ * @return none
+ *************************************************************************/
+void setTesterStatusToLoggedOut( void )
+{
+    testerLoggedIn = FALSE;
+}
+
+/*********************************************************************//**
+ * @brief
  * The sendTestAckResponseMsg function constructs a simple response
  * message for a handled test message and queues it for transmit on the
  * appropriate UART channel.
Index: firmware/App/Services/SystemCommMessages.h
===================================================================
diff -u -r1bff8e530735be63ba557b77557a0bc2ac4b37b2 -r533ecbb65cdd2d1c993bccae018223c0e8a6d55b
--- firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 1bff8e530735be63ba557b77557a0bc2ac4b37b2)
+++ firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 533ecbb65cdd2d1c993bccae018223c0e8a6d55b)
@@ -549,7 +549,8 @@
 
 // MSG_TESTER_LOG_IN
 void handleTesterLogInRequest( MESSAGE_T *message );
-BOOL isTestingActivated( void );
+BOOL isTestingActivated( void );
+void setTesterStatusToLoggedOut( void );
 
 // MSG_ID_OFF_BUTTON_STATE_OVERRIDE
 void handleTestOffButtonStateOverrideRequest( MESSAGE_T *message );