diff --git a/media/java/android/media/AudioAttributes.java b/media/java/android/media/AudioAttributes.java
index e36ceb8a3e131..c1e81c54f1174 100644
--- a/media/java/android/media/AudioAttributes.java
+++ b/media/java/android/media/AudioAttributes.java
@@ -194,6 +194,12 @@ public final class AudioAttributes implements Parcelable {
      * @see #SUPPRESSIBLE_USAGES
      */
     public final static int SUPPRESSIBLE_CALL = 2;
+    /**
+     * @hide
+     * Denotes a usage that is never going to be muted, even in Total Silence.
+     * @see #SUPPRESSIBLE_USAGES
+     */
+    public final static int SUPPRESSIBLE_NEVER = 3;
 
     /**
      * @hide
@@ -211,6 +217,7 @@ public final class AudioAttributes implements Parcelable {
         SUPPRESSIBLE_USAGES.put(USAGE_NOTIFICATION_COMMUNICATION_INSTANT,SUPPRESSIBLE_NOTIFICATION);
         SUPPRESSIBLE_USAGES.put(USAGE_NOTIFICATION_COMMUNICATION_DELAYED,SUPPRESSIBLE_NOTIFICATION);
         SUPPRESSIBLE_USAGES.put(USAGE_NOTIFICATION_EVENT,                SUPPRESSIBLE_NOTIFICATION);
+        SUPPRESSIBLE_USAGES.put(USAGE_ASSISTANCE_ACCESSIBILITY,          SUPPRESSIBLE_NEVER);
     }
 
     /**
diff --git a/services/core/java/com/android/server/notification/ZenModeHelper.java b/services/core/java/com/android/server/notification/ZenModeHelper.java
index 75190f3e3e898..15e32ff6469e2 100644
--- a/services/core/java/com/android/server/notification/ZenModeHelper.java
+++ b/services/core/java/com/android/server/notification/ZenModeHelper.java
@@ -762,7 +762,9 @@ public class ZenModeHelper {
 
         for (int usage : AudioAttributes.SDK_USAGES) {
             final int suppressionBehavior = AudioAttributes.SUPPRESSIBLE_USAGES.get(usage);
-            if (suppressionBehavior == AudioAttributes.SUPPRESSIBLE_NOTIFICATION) {
+            if (suppressionBehavior == AudioAttributes.SUPPRESSIBLE_NEVER) {
+                applyRestrictions(false /*mute*/, usage);
+            } else if (suppressionBehavior == AudioAttributes.SUPPRESSIBLE_NOTIFICATION) {
                 applyRestrictions(muteNotifications || muteEverything, usage);
             } else if (suppressionBehavior == AudioAttributes.SUPPRESSIBLE_CALL) {
                 applyRestrictions(muteCalls || muteEverything, usage);