diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index 88d8472..c22a8a4 100755
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -7476,17 +7476,19 @@
      */
     @Override
     public boolean isDataRoamingEnabled(int subId) {
-        mApp.enforceCallingOrSelfPermission(android.Manifest.permission.ACCESS_NETWORK_STATE,
-                null /* message */);
+        try {
+            mApp.enforceCallingOrSelfPermission(android.Manifest.permission.ACCESS_NETWORK_STATE,
+                    null);
+        } catch (Exception e) {
+            TelephonyPermissions.enforeceCallingOrSelfReadPhoneStatePermissionOrCarrierPrivilege(
+                    mApp, subId, "isDataRoamingEnabled");
+        }
 
         boolean isEnabled = false;
         final long identity = Binder.clearCallingIdentity();
         try {
             Phone phone = getPhone(subId);
             isEnabled =  phone != null ? phone.getDataRoamingEnabled() : false;
-        } catch (Exception e) {
-            TelephonyPermissions.enforeceCallingOrSelfReadPhoneStatePermissionOrCarrierPrivilege(
-                    mApp, subId, "isDataRoamingEnabled");
         } finally {
             Binder.restoreCallingIdentity(identity);
         }
diff --git a/src/com/android/phone/TelephonyShellCommand.java b/src/com/android/phone/TelephonyShellCommand.java
index 14d67cc..c3f2974 100644
--- a/src/com/android/phone/TelephonyShellCommand.java
+++ b/src/com/android/phone/TelephonyShellCommand.java
@@ -24,13 +24,14 @@
 import android.os.RemoteException;
 import android.provider.BlockedNumberContract;
 import android.telephony.CarrierConfigManager;
-import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
 import android.telephony.emergency.EmergencyNumber;
 import android.telephony.ims.feature.ImsFeature;
 import android.util.Log;
 
 import com.android.internal.telephony.ITelephony;
+import com.android.internal.telephony.Phone;
+import com.android.internal.telephony.PhoneFactory;
 import com.android.internal.telephony.emergency.EmergencyNumberTracker;
 import com.android.internal.telephony.util.TelephonyUtils;
 
@@ -739,17 +740,21 @@
         try {
             slotId = Integer.parseInt(slotString);
         } catch (NumberFormatException e) {
+            getErrPrintWriter().println(tag + slotString + " is not a valid number for SLOT_ID.");
+            return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
+        }
+
+        if (!SubscriptionManager.isValidPhoneId(slotId)) {
             getErrPrintWriter().println(tag + slotString + " is not a valid SLOT_ID.");
             return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
         }
 
-        SubscriptionInfo subInfo =
-                mSubscriptionManager.getActiveSubscriptionInfoForSimSlotIndex(slotId);
-        if (subInfo == null) {
+        Phone phone = PhoneFactory.getPhone(slotId);
+        if (phone == null) {
             getErrPrintWriter().println(tag + "No subscription found in slot " + slotId + ".");
             return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
         }
-        return subInfo.getSubscriptionId();
+        return phone.getSubId();
     }
 
     private boolean checkShellUid() {
diff --git a/src/com/android/phone/settings/VoicemailSettingsActivity.java b/src/com/android/phone/settings/VoicemailSettingsActivity.java
index 66b1af9..2bd5306 100644
--- a/src/com/android/phone/settings/VoicemailSettingsActivity.java
+++ b/src/com/android/phone/settings/VoicemailSettingsActivity.java
@@ -238,6 +238,10 @@
 
         mVoicemailNotificationPreference =
                 findPreference(getString(R.string.voicemail_notifications_key));
+        if (mSubMenuVoicemailSettings == null) {
+            mSubMenuVoicemailSettings =
+                    (EditPhoneNumberPreference) findPreference(BUTTON_VOICEMAIL_KEY);
+        }
         final Intent intent = new Intent(Settings.ACTION_CHANNEL_NOTIFICATION_SETTINGS);
         intent.putExtra(Settings.EXTRA_CHANNEL_ID,
                 NotificationChannelController.CHANNEL_ID_VOICE_MAIL);
@@ -250,12 +254,6 @@
         super.onResume();
         mForeground = true;
 
-        PreferenceScreen prefSet = getPreferenceScreen();
-
-        if (mSubMenuVoicemailSettings == null) {
-            mSubMenuVoicemailSettings =
-                    (EditPhoneNumberPreference) findPreference(BUTTON_VOICEMAIL_KEY);
-        }
         if (mSubMenuVoicemailSettings != null) {
             mSubMenuVoicemailSettings.setParentActivity(this, VOICEMAIL_PREF_ID, this);
             mSubMenuVoicemailSettings.setDialogOnClosedListener(this);