diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index 958c860..722c2f3 100755
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -8861,7 +8861,7 @@
             loge("isMultiSimSupportedInternal: no static configuration available");
             return TelephonyManager.MULTISIM_NOT_SUPPORTED_BY_HARDWARE;
         }
-        if (staticCapability.logicalModemList.size() < 2) {
+        if (staticCapability.getLogicalModemList().size() < 2) {
             loge("isMultiSimSupportedInternal: maximum number of modem is < 2");
             return TelephonyManager.MULTISIM_NOT_SUPPORTED_BY_HARDWARE;
         }
@@ -10341,4 +10341,23 @@
             Binder.restoreCallingIdentity(identity);
         }
     }
+
+    /**
+     * Gets the current phone capability.
+     *
+     * Requires carrier privileges or READ_PRECISE_PHONE_STATE permission.
+     * @return the PhoneCapability which describes the data connection capability of modem.
+     * It's used to evaluate possible phone config change, for example from single
+     * SIM device to multi-SIM device.
+     */
+    @Override
+    public PhoneCapability getPhoneCapability() {
+        enforceReadPrivilegedPermission("getPhoneCapability");
+        final long identity = Binder.clearCallingIdentity();
+        try {
+            return mPhoneConfigurationManager.getCurrentPhoneCapability();
+        } finally {
+            Binder.restoreCallingIdentity(identity);
+        }
+    }
 }