diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 31ea98cc..05b9c8a 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -2043,6 +2043,18 @@
          are controlled together (aliasing is true) or not. -->
     <bool name="config_alias_ring_notif_stream_types">true</bool>
 
+    <!-- The number of volume steps for the notification stream -->
+    <integer name="config_audio_notif_vol_steps">7</integer>
+
+    <!-- The default volume for the notification stream -->
+    <integer name="config_audio_notif_vol_default">5</integer>
+
+    <!-- The number of volume steps for the ring stream -->
+    <integer name="config_audio_ring_vol_steps">7</integer>
+
+    <!-- The default volume for the ring stream -->
+    <integer name="config_audio_ring_vol_default">5</integer>
+
     <!-- Flag indicating whether platform level volume adjustments are enabled for remote sessions
          on grouped devices. -->
     <bool name="config_volumeAdjustmentForRemoteGroupSessions">true</bool>
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index d03550c..205681c 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -274,6 +274,10 @@
   <java-symbol type="bool" name="action_bar_embed_tabs" />
   <java-symbol type="bool" name="action_bar_expanded_action_views_exclusive" />
   <java-symbol type="bool" name="config_alias_ring_notif_stream_types" />
+  <java-symbol type="integer" name="config_audio_notif_vol_default" />
+  <java-symbol type="integer" name="config_audio_notif_vol_steps" />
+  <java-symbol type="integer" name="config_audio_ring_vol_default" />
+  <java-symbol type="integer" name="config_audio_ring_vol_steps" />
   <java-symbol type="bool" name="config_avoidGfxAccel" />
   <java-symbol type="bool" name="config_bluetooth_address_validation" />
   <java-symbol type="integer" name="config_chooser_max_targets_per_row" />
diff --git a/media/java/android/media/AudioSystem.java b/media/java/android/media/AudioSystem.java
index 444366a..c666140 100644
--- a/media/java/android/media/AudioSystem.java
+++ b/media/java/android/media/AudioSystem.java
@@ -2294,10 +2294,10 @@
     public static int[] DEFAULT_STREAM_VOLUME = new int[] {
         4,  // STREAM_VOICE_CALL
         7,  // STREAM_SYSTEM
-        5,  // STREAM_RING
+        5,  // STREAM_RING           // configured in AudioService by config_audio_notif_vol_default
         5, // STREAM_MUSIC
         6,  // STREAM_ALARM
-        5,  // STREAM_NOTIFICATION
+        5,  // STREAM_NOTIFICATION   // configured in AudioService by config_audio_ring_vol_default
         7,  // STREAM_BLUETOOTH_SCO
         7,  // STREAM_SYSTEM_ENFORCED
         5, // STREAM_DTMF
diff --git a/services/core/java/com/android/server/audio/AudioService.java b/services/core/java/com/android/server/audio/AudioService.java
index bed69b2..c00c298 100644
--- a/services/core/java/com/android/server/audio/AudioService.java
+++ b/services/core/java/com/android/server/audio/AudioService.java
@@ -63,6 +63,7 @@
 import android.content.pm.ResolveInfo;
 import android.content.pm.UserInfo;
 import android.content.res.Configuration;
+import android.content.res.Resources;
 import android.database.ContentObserver;
 import android.hardware.SensorPrivacyManager;
 import android.hardware.SensorPrivacyManagerInternal;
@@ -411,10 +412,10 @@
     protected static int[] MAX_STREAM_VOLUME = new int[] {
         5,  // STREAM_VOICE_CALL
         7,  // STREAM_SYSTEM
-        7,  // STREAM_RING
+        7,  // STREAM_RING            // configured by config_audio_ring_vol_steps
         15, // STREAM_MUSIC
         7,  // STREAM_ALARM
-        7,  // STREAM_NOTIFICATION
+        7,  // STREAM_NOTIFICATION    // configured by config_audio_notif_vol_steps
         15, // STREAM_BLUETOOTH_SCO
         7,  // STREAM_SYSTEM_ENFORCED
         15, // STREAM_DTMF
@@ -1111,6 +1112,48 @@
                         MAX_STREAM_VOLUME[AudioSystem.STREAM_SYSTEM];
         }
 
+        // Read following properties to configure max volume (number of steps) and default volume
+        //   for STREAM_NOTIFICATION and STREAM_RING:
+        //      config_audio_notif_vol_default
+        //      config_audio_notif_vol_steps
+        //      config_audio_ring_vol_default
+        //      config_audio_ring_vol_steps
+        int[] streams = { AudioSystem.STREAM_NOTIFICATION, AudioSystem.STREAM_RING };
+        int[] stepsResId = { com.android.internal.R.integer.config_audio_notif_vol_steps,
+                com.android.internal.R.integer.config_audio_ring_vol_steps };
+        int[] defaultResId = { com.android.internal.R.integer.config_audio_notif_vol_default,
+                com.android.internal.R.integer.config_audio_ring_vol_default };
+        for (int s = 0; s < streams.length; s++) {
+            try {
+                final int maxVol = mContext.getResources().getInteger(stepsResId[s]);
+                if (maxVol <= 0) {
+                    throw new IllegalArgumentException("Invalid negative max volume for stream "
+                            + streams[s]);
+                }
+                Log.i(TAG, "Stream " + streams[s] + ": using max vol of " + maxVol);
+                MAX_STREAM_VOLUME[streams[s]] = maxVol;
+            } catch (Resources.NotFoundException e) {
+                Log.e(TAG, "Error querying max vol for stream type " + streams[s], e);
+            }
+            try {
+                final int defaultVol = mContext.getResources().getInteger(defaultResId[s]);
+                if (defaultVol > MAX_STREAM_VOLUME[streams[s]]) {
+                    throw new IllegalArgumentException("Invalid default volume (" + defaultVol
+                            + ") for stream " + streams[s] + ", greater than max volume of "
+                            + MAX_STREAM_VOLUME[streams[s]]);
+                }
+                if (defaultVol < MIN_STREAM_VOLUME[streams[s]]) {
+                    throw new IllegalArgumentException("Invalid default volume (" + defaultVol
+                            + ") for stream " + streams[s] + ", lower than min volume of "
+                            + MIN_STREAM_VOLUME[streams[s]]);
+                }
+                Log.i(TAG, "Stream " + streams[s] + ": using default vol of " + defaultVol);
+                AudioSystem.DEFAULT_STREAM_VOLUME[streams[s]] = defaultVol;
+            } catch (Resources.NotFoundException e) {
+                Log.e(TAG, "Error querying default vol for stream type " + streams[s], e);
+            }
+        }
+
         if (looper == null) {
             createAudioSystemThread();
         } else {