diff --git a/src/com/android/dialer/compat/SettingsCompat.java b/src/com/android/dialer/compat/SettingsCompat.java
new file mode 100644
index 0000000..474a600
--- /dev/null
+++ b/src/com/android/dialer/compat/SettingsCompat.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.dialer.compat;
+
+import android.content.Context;
+import android.os.Build;
+import android.os.Build.VERSION_CODES;
+import android.provider.Settings;
+
+import com.android.contacts.common.compat.SdkVersionOverride;
+
+/**
+ * Compatibility class for {@link android.provider.Settings}
+ */
+public class SettingsCompat {
+
+    public static class System {
+
+        /**
+         * Compatibility version of {@link android.provider.Settings.System#canWrite(Context)}
+         *
+         * Note: Since checking preferences at runtime started in M, this method always returns
+         * {@code true} for SDK versions prior to 23. In those versions, the app wouldn't be
+         * installed if it didn't have the proper permission
+         */
+        public static boolean canWrite(Context context) {
+            if (SdkVersionOverride.getSdkVersion(VERSION_CODES.LOLLIPOP) >= Build.VERSION_CODES.M) {
+                return Settings.System.canWrite(context);
+            }
+            return true;
+        }
+    }
+
+}
diff --git a/src/com/android/dialer/settings/DefaultRingtonePreference.java b/src/com/android/dialer/settings/DefaultRingtonePreference.java
index a174381..a8a23fd 100644
--- a/src/com/android/dialer/settings/DefaultRingtonePreference.java
+++ b/src/com/android/dialer/settings/DefaultRingtonePreference.java
@@ -16,17 +16,16 @@
 
 package com.android.dialer.settings;
 
-import android.app.AppOpsManager;
 import android.content.Context;
 import android.content.Intent;
 import android.media.RingtoneManager;
 import android.net.Uri;
 import android.preference.RingtonePreference;
-import android.provider.Settings;
 import android.util.AttributeSet;
 import android.widget.Toast;
 
 import com.android.dialer.R;
+import com.android.dialer.compat.SettingsCompat;
 
 /**
  * RingtonePreference which doesn't show default ringtone setting.
@@ -49,7 +48,7 @@
 
     @Override
     protected void onSaveRingtone(Uri ringtoneUri) {
-        if (!Settings.System.canWrite(getContext())) {
+        if (!SettingsCompat.System.canWrite(getContext())) {
             Toast.makeText(
                     getContext(),
                     getContext().getResources().getString(R.string.toast_cannot_write_system_settings),
diff --git a/src/com/android/dialer/settings/DialerSettingsActivity.java b/src/com/android/dialer/settings/DialerSettingsActivity.java
index d0bfbc2..a6e8944 100644
--- a/src/com/android/dialer/settings/DialerSettingsActivity.java
+++ b/src/com/android/dialer/settings/DialerSettingsActivity.java
@@ -28,6 +28,7 @@
 import android.widget.Toast;
 
 import com.android.dialer.R;
+import com.android.dialer.compat.SettingsCompat;
 import com.android.dialer.filterednumber.BlockedNumbersSettingsActivity;
 
 import java.util.List;
@@ -109,7 +110,7 @@
             // If we don't have the permission to write to system settings, go to system sound
             // settings instead. Otherwise, perform the super implementation (which launches our
             // own preference fragment.
-            if (!Settings.System.canWrite(this)) {
+            if (!SettingsCompat.System.canWrite(this)) {
                 Toast.makeText(
                         this,
                         getResources().getString(R.string.toast_cannot_write_system_settings),
diff --git a/src/com/android/dialer/settings/SoundSettingsFragment.java b/src/com/android/dialer/settings/SoundSettingsFragment.java
index 35e1dae..30a25a3 100644
--- a/src/com/android/dialer/settings/SoundSettingsFragment.java
+++ b/src/com/android/dialer/settings/SoundSettingsFragment.java
@@ -16,9 +16,7 @@
 
 package com.android.dialer.settings;
 
-import android.app.AppOpsManager;
 import android.content.Context;
-import android.content.Intent;
 import android.media.RingtoneManager;
 import android.os.Bundle;
 import android.os.Handler;
@@ -32,21 +30,12 @@
 import android.provider.Settings;
 import android.telephony.CarrierConfigManager;
 import android.telephony.TelephonyManager;
-import android.view.MenuItem;
 import android.widget.Toast;
 
-import com.android.contacts.common.util.PermissionsUtil;
 import com.android.dialer.R;
+import com.android.dialer.compat.SettingsCompat;
 import com.android.phone.common.util.SettingsUtil;
 
-import java.lang.Boolean;
-import java.lang.CharSequence;
-import java.lang.Object;
-import java.lang.Override;
-import java.lang.Runnable;
-import java.lang.String;
-import java.lang.Thread;
-
 public class SoundSettingsFragment extends PreferenceFragment
         implements Preference.OnPreferenceChangeListener {
 
@@ -137,7 +126,7 @@
     public void onResume() {
         super.onResume();
 
-        if (!Settings.System.canWrite(getContext())) {
+        if (!SettingsCompat.System.canWrite(getContext())) {
             // If the user launches this setting fragment, then toggles the WRITE_SYSTEM_SETTINGS
             // AppOp, then close the fragment since there is nothing useful to do.
             getActivity().onBackPressed();
@@ -160,7 +149,7 @@
      */
     @Override
     public boolean onPreferenceChange(Preference preference, Object objValue) {
-        if (!Settings.System.canWrite(getContext())) {
+        if (!SettingsCompat.System.canWrite(getContext())) {
             // A user shouldn't be able to get here, but this protects against monkey crashes.
             Toast.makeText(
                     getContext(),
@@ -186,7 +175,7 @@
      */
     @Override
     public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
-        if (!Settings.System.canWrite(getContext())) {
+        if (!SettingsCompat.System.canWrite(getContext())) {
             Toast.makeText(
                     getContext(),
                     getResources().getString(R.string.toast_cannot_write_system_settings),