diff --git a/src/com/android/phone/CarrierConfigLoader.java b/src/com/android/phone/CarrierConfigLoader.java
index a270e07..44375bb 100644
--- a/src/com/android/phone/CarrierConfigLoader.java
+++ b/src/com/android/phone/CarrierConfigLoader.java
@@ -978,7 +978,7 @@
         if (isNoSimConfig) {
             fileName = getFilenameForNoSimConfig(packageName);
         } else {
-            if (SubscriptionManager.getSimStateForSlotIndex(phoneId)
+            if (TelephonyManager.getSimStateForSlotIndex(phoneId)
                     != TelephonyManager.SIM_STATE_LOADED) {
                 loge("Skip save config because SIM records are not loaded.");
                 return;
@@ -1069,7 +1069,7 @@
         if (isNoSimConfig) {
             fileName = getFilenameForNoSimConfig(packageName);
         } else {
-            if (SubscriptionManager.getSimStateForSlotIndex(phoneId)
+            if (TelephonyManager.getSimStateForSlotIndex(phoneId)
                     != TelephonyManager.SIM_STATE_LOADED) {
                 loge("Skip restore config because SIM records are not loaded.");
                 return null;
diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index 40049fc..5dd7f41 100644
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -111,6 +111,7 @@
 import android.telephony.TelephonyFrameworkInitializer;
 import android.telephony.TelephonyHistogram;
 import android.telephony.TelephonyManager;
+import android.telephony.TelephonyManager.SimState;
 import android.telephony.TelephonyScanManager;
 import android.telephony.ThermalMitigationRequest;
 import android.telephony.UiccCardInfo;
@@ -167,6 +168,7 @@
 import com.android.internal.telephony.INumberVerificationCallback;
 import com.android.internal.telephony.ITelephony;
 import com.android.internal.telephony.IccCard;
+import com.android.internal.telephony.IccCardConstants;
 import com.android.internal.telephony.IccLogicalChannelRequest;
 import com.android.internal.telephony.LocaleTracker;
 import com.android.internal.telephony.NetworkScanRequestTracker;
@@ -11635,4 +11637,37 @@
         return SmsApplication.getDefaultRespondViaMessageApplicationAsUser(context,
                 updateIfNeeded, userHandle);
     }
+
+    /**
+     * Get the SIM state for the slot index.
+     * For Remote-SIMs, this method returns {@link IccCardConstants.State#UNKNOWN}
+     *
+     * @return SIM state as the ordinal of {@link IccCardConstants.State}
+     */
+    @Override
+    @SimState
+    public int getSimStateForSlotIndex(int slotIndex) {
+        IccCardConstants.State simState;
+        if (slotIndex < 0) {
+            simState = IccCardConstants.State.UNKNOWN;
+        } else {
+            Phone phone = null;
+            try {
+                phone = PhoneFactory.getPhone(slotIndex);
+            } catch (IllegalStateException e) {
+                // ignore
+            }
+            if (phone == null) {
+                simState = IccCardConstants.State.UNKNOWN;
+            } else {
+                IccCard icc = phone.getIccCard();
+                if (icc == null) {
+                    simState = IccCardConstants.State.UNKNOWN;
+                } else {
+                    simState = icc.getState();
+                }
+            }
+        }
+        return simState.ordinal();
+    }
 }
\ No newline at end of file
diff --git a/src/com/android/services/telephony/TelephonyConnectionService.java b/src/com/android/services/telephony/TelephonyConnectionService.java
index 9b49c3e..e86a1ae 100644
--- a/src/com/android/services/telephony/TelephonyConnectionService.java
+++ b/src/com/android/services/telephony/TelephonyConnectionService.java
@@ -233,7 +233,7 @@
 
         @Override
         public int getSimStateForSlotIdx(int slotId) {
-            return SubscriptionManager.getSimStateForSlotIndex(slotId);
+            return TelephonyManager.getSimStateForSlotIndex(slotId);
         }
 
         @Override