+++ b/frameworks/base/core/res/res/values/symbols.xml
   <java-symbol type="raw" name="fallbackring" />
+  <java-symbol type="raw" name="alarmbeep" />

+++ b/frameworks/opt/net/wifi/service/java/com/android/server/wifi/WifiNotificationController.java
@@ -37,7 +37,9 @@ import android.provider.Settings;
+import com.android.internal.R;
@@ -264,11 +267,14 @@ final class WifiNotificationController {
             mNotificationBuilder.setTicker(title);
             mNotificationBuilder.setContentTitle(title);
             mNotificationBuilder.setContentText(details);
+            mNotificationBuilder.setSound(Uri.parse("android.resource://" + "com.android.systemui"  
+                + "/" + R.raw.fallbackring));
 
             mNotificationRepeatTime = System.currentTimeMillis() + NOTIFICATION_REPEAT_DELAY_MS;
 
             notificationManager.notifyAsUser(null, ICON_NETWORKS_AVAILABLE,
                     mNotificationBuilder.build(), UserHandle.ALL);