diff --git a/app/src/main/java/uk/org/openseizuredetector/MainActivity.java b/app/src/main/java/uk/org/openseizuredetector/MainActivity.java
index 9ccc941..d24339b 100644
--- a/app/src/main/java/uk/org/openseizuredetector/MainActivity.java
+++ b/app/src/main/java/uk/org/openseizuredetector/MainActivity.java
@@ -127,6 +127,18 @@ public class MainActivity extends Activity {
             }
         });
 
+        // Deal with the 'Cancel Audible Button'
+        button = (Button) findViewById(R.id.cancelAudibleButton);
+        button.setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                Log.v(TAG, "cancelAudibleButton.onClick()");
+                if (mConnection.mBound) {
+                    mConnection.mSdServer.cancelAudible();
+                }
+            }
+        });
+
+
         // start timer to refresh user interface every second.
         Timer uiTimer = new Timer();
         uiTimer.schedule(new TimerTask() {
@@ -402,6 +414,26 @@ public class MainActivity extends Activity {
             } catch (Exception e) {
                 Log.v(TAG, "ServerStatusRunnable: Exception - " + e.toString());
             }
+
+
+            // Deal with Cancel Audible button
+            Button cancelAudibleButton =
+                    (Button) findViewById(R.id.cancelAudibleButton);
+            if (mConnection.mSdServer.isAudibleCancelled()) {
+                cancelAudibleButton.setText("Audible Alarms Cancelled "
+                        + "for "
+                        + mConnection.mSdServer.
+                        cancelAudibleTimeRemaining()
+                        + " sec."
+                        + " Press to re-enable");
+            } else {
+                if (mConnection.mSdServer.mAudibleAlarm) {
+                    cancelAudibleButton.setText("Cancel Audible Alarms (temporarily)");
+                } else {
+                    cancelAudibleButton.setText("Audible Alarms OFF");
+                }
+            }
+
             ////////////////////////////////////////////////////////////
             // Produce graph
             LineChart mChart = (LineChart) findViewById(R.id.chart1);
diff --git a/app/src/main/java/uk/org/openseizuredetector/SdServer.java b/app/src/main/java/uk/org/openseizuredetector/SdServer.java
index b3aa79d..1becade 100644
--- a/app/src/main/java/uk/org/openseizuredetector/SdServer.java
+++ b/app/src/main/java/uk/org/openseizuredetector/SdServer.java
@@ -91,7 +91,7 @@ public class SdServer extends Service implements SdDataReceiver {
     private String mSdDataSourceName = "undefined";  // The name of the data soruce specified in the preferences.
     private boolean mLatchAlarms = false;
     private boolean mCancelAudible = false;
-    private boolean mAudibleAlarm = false;
+    public boolean mAudibleAlarm = false;
     private boolean mAudibleWarning = false;
     private boolean mAudibleFaultWarning = false;
     private boolean mSMSAlarm = false;
@@ -232,6 +232,15 @@ public class SdServer extends Service implements SdDataReceiver {
 
         mSdDataSource.stop();
 
+        // Stop the data update timer
+        if (mCancelAudibleTimer !=null) {
+            Log.v(TAG,"stop(): cancelling Cancel_Audible timer");
+            mCancelAudibleTimer.cancel();
+            //mCancelAudibleTimer.purge();
+            mCancelAudibleTimer = null;
+        }
+
+
         try {
             // Cancel the notification.
             Log.v(TAG, "onDestroy(): cancelling notification");
diff --git a/app/src/main/res/layout/main.xml b/app/src/main/res/layout/main.xml
index ef0af83..32367c9 100644
--- a/app/src/main/res/layout/main.xml
+++ b/app/src/main/res/layout/main.xml
@@ -113,11 +113,20 @@
 		android:id="@+id/spectrumProgressBar"
 		android:indeterminate="false" />
 
-	<Button
+	<LinearLayout
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content">
+		<Button
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:text="Accept Alarm"
+			android:id="@+id/acceptAlarmButton" />
+		<Button
 		android:layout_width="wrap_content"
 		android:layout_height="wrap_content"
-		android:text="Accept Alarm"
-		android:id="@+id/acceptAlarmButton" />
+		android:text="Cancel Audible (temporarily)"
+		android:id="@+id/cancelAudibleButton" />
+	</LinearLayout>
 
 	<com.github.mikephil.charting.charts.LineChart
         android:id="@+id/chart1"