Index: firmware/App/Services/AlarmMgmt.c
===================================================================
diff -u -r6cb2aa52c6701efe0788ee453da6449e29860927 -rdf41331377d5da437e853327019c17c58e3af775
--- firmware/App/Services/AlarmMgmt.c	(.../AlarmMgmt.c)	(revision 6cb2aa52c6701efe0788ee453da6449e29860927)
+++ firmware/App/Services/AlarmMgmt.c	(.../AlarmMgmt.c)	(revision df41331377d5da437e853327019c17c58e3af775)
@@ -37,6 +37,7 @@
 #define ALARM_STATUS_PUBLISH_INTERVAL           ( ALARM_LAMP_AND_AUDIO_CONTROL_INTERVAL_MS / TASK_GENERAL_INTERVAL )
 
 #define ALARM_SILENCE_EXPIRES_IN_SECS           (60)                                ///< Alarm silence expiration time in seconds.
+#define ALARM_SILENCE_REQUESTED                 1                                   ///< User cmd to request alarm silence (1=silence, 0=cancel silence).
 
 #define SUPERVISOR_ALARM_KEY                    0xD2C3B4A5                          ///< 32-bit key required for clear all alarms request.
 
@@ -422,6 +423,37 @@
 
 /*********************************************************************//**
  * @brief
+ * The signalAlarmSilence function handles an alarm silence request from
+ * the user.
+ * @details Inputs: none
+ * @details Outputs: alarm silence status updated
+ * @param cmd ID of user command (1=silence, 0=cancel silence)
+ * @return none
+ *************************************************************************/
+void signalAlarmSilence( U08 cmd )
+{
+    if ( ALARM_SILENCE_REQUESTED == cmd )
+    {
+        if ( FALSE == alarmStatus.alarmsSilenced )
+        {
+            alarmStatus.alarmsSilenced = TRUE;
+            alarmStatus.alarmsSilenceStart = getMSTimerCount();
+            alarmStatus.alarmsSilenceExpiresIn = ALARM_SILENCE_EXPIRES_IN_SECS;
+        }
+    }
+    else
+    {
+        if ( TRUE == alarmStatus.alarmsSilenced )
+        {
+            alarmStatus.alarmsSilenced = FALSE;
+            alarmStatus.alarmsSilenceStart = 0;
+            alarmStatus.alarmsSilenceExpiresIn = 0;
+        }
+    }
+}
+
+/*********************************************************************//**
+ * @brief
  * The signalAlarmUserActionInitiated function clears all non-recoverable alarms
  * and initiates selected user action.
  * @details Inputs: none