diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index abfa8d7..cdee4ea 100755
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -1172,9 +1172,6 @@
     private Phone getPhone(int subId) {
         return PhoneFactory.getPhone(mSubscriptionController.getPhoneId(subId));
     }
-    //
-    // Implementation of the ITelephony interface.
-    //
 
     public void dial(String number) {
         dialForSubscriber(getPreferredVoiceSubscription(), number);
@@ -2591,6 +2588,10 @@
 
     @Override
     public int getNetworkSelectionMode(int subId) {
+        if (!isActiveSubscription(subId)) {
+            return TelephonyManager.NETWORK_SELECTION_MODE_UNKNOWN;
+        }
+
         return (int) sendRequest(CMD_GET_NETWORK_SELECTION_MODE, null /* argument */, subId);
     }
 
@@ -2752,6 +2753,10 @@
         return mSubscriptionController.getDefaultVoiceSubId();
     }
 
+    private boolean isActiveSubscription(int subId) {
+        return mSubscriptionController.isActiveSubId(subId);
+    }
+
     /**
      * @see android.telephony.TelephonyManager.WifiCallingChoices
      */
@@ -3279,6 +3284,10 @@
         TelephonyPermissions.enforceCallingOrSelfModifyPermissionOrCarrierPrivilege(
                 mApp, subId, "setNetworkSelectionModeAutomatic");
 
+        if (!isActiveSubscription(subId)) {
+            return;
+        }
+
         final long identity = Binder.clearCallingIdentity();
         try {
             if (DBG) log("setNetworkSelectionModeAutomatic: subId " + subId);
@@ -3304,6 +3313,11 @@
             int subId, OperatorInfo operatorInfo, boolean persistSelection) {
         TelephonyPermissions.enforceCallingOrSelfModifyPermissionOrCarrierPrivilege(
                 mApp, subId, "setNetworkSelectionModeManual");
+
+        if (!isActiveSubscription(subId)) {
+            return false;
+        }
+
         final long identity = Binder.clearCallingIdentity();
         try {
             ManualNetworkSelectionArgument arg = new ManualNetworkSelectionArgument(operatorInfo,