diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index d080b31..494b89b 100755
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -6542,4 +6542,24 @@
         metrics.updateEnabledModemBitmap((1 << TelephonyManager.from(mApp).getPhoneCount()) - 1);
     }
 
+    @Override
+    public int[] getSlotsMapping() {
+        enforceReadPrivilegedPermission("getSlotsMapping");
+
+        final long identity = Binder.clearCallingIdentity();
+        try {
+            int phoneCount = TelephonyManager.getDefault().getPhoneCount();
+            // All logical slots should have a mapping to a physical slot.
+            int[] logicalSlotsMapping = new int[phoneCount];
+            UiccSlotInfo[] slotInfos = getUiccSlotsInfo();
+            for (int i = 0; i < slotInfos.length; i++) {
+                if (SubscriptionManager.isValidPhoneId(slotInfos[i].getLogicalSlotIdx())) {
+                    logicalSlotsMapping[slotInfos[i].getLogicalSlotIdx()] = i;
+                }
+            }
+            return logicalSlotsMapping;
+        } finally {
+            Binder.restoreCallingIdentity(identity);
+        }
+    }
 }