diff --git a/media/java/android/media/AudioSystem.java b/media/java/android/media/AudioSystem.java
index 3455c4f01ff92..1033e56776b9d 100644
--- a/media/java/android/media/AudioSystem.java
+++ b/media/java/android/media/AudioSystem.java
@@ -25,6 +25,7 @@ import android.content.Context;
 import android.content.pm.PackageManager;
 import android.media.audiofx.AudioEffect;
 import android.media.audiopolicy.AudioMix;
+import android.telephony.TelephonyManager;
 import android.util.Log;
 
 import java.lang.annotation.Retention;
@@ -1239,7 +1240,8 @@ public class AudioSystem
      * </ul>
      */
     public static int getPlatformType(Context context) {
-        if (context.getResources().getBoolean(com.android.internal.R.bool.config_voice_capable)) {
+        if (((TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE))
+                .isVoiceCapable()) {
             return PLATFORM_VOICE;
         } else if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_LEANBACK)) {
             return PLATFORM_TELEVISION;
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java b/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
index 5e2b7c86ee934..6821942111f17 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
@@ -949,8 +949,7 @@ class DatabaseHelper extends SQLiteOpenHelper {
                                                 (1 << AudioManager.STREAM_NOTIFICATION) |
                                                 (1 << AudioManager.STREAM_SYSTEM) |
                                                 (1 << AudioManager.STREAM_SYSTEM_ENFORCED);
-                if (!mContext.getResources().getBoolean(
-                        com.android.internal.R.bool.config_voice_capable)) {
+                if (!getTelephonyManager().isVoiceCapable()) {
                     ringerModeAffectedStreams |= (1 << AudioManager.STREAM_MUSIC);
                 }
                 db.execSQL("DELETE FROM system WHERE name='"
@@ -2579,7 +2578,7 @@ class DatabaseHelper extends SQLiteOpenHelper {
             String val = "";
             String mode;
             for (int phoneId = 0;
-                    phoneId < TelephonyManager.getDefault().getPhoneCount(); phoneId++) {
+                    phoneId < getTelephonyManager().getPhoneCount(); phoneId++) {
                 mode = TelephonyManager.getTelephonyProperty(phoneId,
                         "ro.telephony.default_network",
                         Integer.toString(RILConstants.PREFERRED_NETWORK_MODE));
@@ -2693,4 +2692,9 @@ class DatabaseHelper extends SQLiteOpenHelper {
     private String getDefaultDeviceName() {
         return mContext.getResources().getString(R.string.def_device_name_simple, Build.MODEL);
     }
+
+    private TelephonyManager getTelephonyManager() {
+        return (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE);
+    }
+
 }
diff --git a/packages/SystemUI/src/com/android/keyguard/CarrierTextController.java b/packages/SystemUI/src/com/android/keyguard/CarrierTextController.java
index 4dbca47c2f0aa..9d9cad825444e 100644
--- a/packages/SystemUI/src/com/android/keyguard/CarrierTextController.java
+++ b/packages/SystemUI/src/com/android/keyguard/CarrierTextController.java
@@ -163,8 +163,7 @@ public class CarrierTextController {
     public CarrierTextController(Context context, CharSequence separator, boolean showAirplaneMode,
             boolean showMissingSim) {
         mContext = context;
-        mIsEmergencyCallCapable = context.getResources().getBoolean(
-                com.android.internal.R.bool.config_voice_capable);
+        mIsEmergencyCallCapable = getTelephonyManager().isVoiceCapable();
 
         mShowAirplaneMode = showAirplaneMode;
         mShowMissingSim = showMissingSim;
diff --git a/packages/SystemUI/src/com/android/keyguard/EmergencyButton.java b/packages/SystemUI/src/com/android/keyguard/EmergencyButton.java
index 210b82d1d69c2..1acccf90c0eba 100644
--- a/packages/SystemUI/src/com/android/keyguard/EmergencyButton.java
+++ b/packages/SystemUI/src/com/android/keyguard/EmergencyButton.java
@@ -26,6 +26,7 @@ import android.os.RemoteException;
 import android.os.SystemClock;
 import android.os.UserHandle;
 import android.telecom.TelecomManager;
+import android.telephony.TelephonyManager;
 import android.util.AttributeSet;
 import android.util.Slog;
 import android.view.MotionEvent;
@@ -92,13 +93,16 @@ public class EmergencyButton extends Button {
 
     public EmergencyButton(Context context, AttributeSet attrs) {
         super(context, attrs);
-        mIsVoiceCapable = context.getResources().getBoolean(
-                com.android.internal.R.bool.config_voice_capable);
+        mIsVoiceCapable = getTelephonyManager().isVoiceCapable();
         mEnableEmergencyCallWhileSimLocked = mContext.getResources().getBoolean(
                 com.android.internal.R.bool.config_enable_emergency_call_while_sim_locked);
         mEmergencyAffordanceManager = new EmergencyAffordanceManager(context);
     }
 
+    private TelephonyManager getTelephonyManager() {
+        return (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE);
+    }
+
     @Override
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();