diff --git a/src/com/android/settings/network/ims/ImsQueryController.java b/src/com/android/settings/network/ims/ImsQueryController.java
index 8fdad40..068a805 100644
--- a/src/com/android/settings/network/ims/ImsQueryController.java
+++ b/src/com/android/settings/network/ims/ImsQueryController.java
@@ -20,6 +20,7 @@
 import android.telephony.SubscriptionManager;
 import android.telephony.ims.ImsException;
 import android.telephony.ims.ImsMmTelManager;
+import android.telephony.ims.feature.ImsFeature;
 import android.telephony.ims.feature.MmTelFeature;
 import android.telephony.ims.stub.ImsRegistrationImplBase;
 
@@ -84,4 +85,20 @@
     boolean isProvisionedOnDevice(int subId) {
         return (new ImsQueryProvisioningStat(subId, mCapability, mTech)).query();
     }
+
+    @VisibleForTesting
+    boolean isServiceStateReady(int subId) throws InterruptedException, ImsException,
+            IllegalArgumentException {
+        if (!SubscriptionManager.isValidSubscriptionId(subId)) {
+            return false;
+        }
+
+        final ImsMmTelManager imsMmTelManager = ImsMmTelManager.createForSubscriptionId(subId);
+        // TODO: have a shared thread pool instead of create ExecutorService
+        //       everytime to improve performance.
+        final ExecutorService executor = Executors.newSingleThreadExecutor();
+        final IntegerConsumer intResult = new IntegerConsumer();
+        imsMmTelManager.getFeatureState(executor, intResult);
+        return (intResult.get(TIMEOUT_MILLIS) == ImsFeature.STATE_READY);
+    }
 }
diff --git a/src/com/android/settings/network/ims/IntegerConsumer.java b/src/com/android/settings/network/ims/IntegerConsumer.java
new file mode 100644
index 0000000..02c8227
--- /dev/null
+++ b/src/com/android/settings/network/ims/IntegerConsumer.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.network.ims;
+
+import java.util.concurrent.Semaphore;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.Consumer;
+
+class IntegerConsumer extends Semaphore implements Consumer<Integer> {
+
+    private static final String TAG = "IntegerConsumer";
+
+    IntegerConsumer() {
+        super(0);
+        mValue = new AtomicInteger();
+    }
+
+    private volatile AtomicInteger mValue;
+
+    /**
+     * Get boolean value reported from callback
+     *
+     * @param timeout callback waiting time in milliseconds
+     * @return int value reported
+     * @throws InterruptedException when thread get interrupted
+     */
+    int get(long timeout) throws InterruptedException {
+        tryAcquire(timeout, TimeUnit.MILLISECONDS);
+        return mValue.get();
+    }
+
+    /**
+     * Implementation of {@link Consumer#accept(Integer)}
+     *
+     * @param value int reported from {@link Consumer#accept(Integer)}
+     */
+    public void accept(Integer value) {
+        if (value != null) {
+            mValue.set(value.intValue());
+        }
+        release();
+    }
+}
diff --git a/src/com/android/settings/network/ims/VtQueryImsState.java b/src/com/android/settings/network/ims/VtQueryImsState.java
index 60bd729..c077603 100644
--- a/src/com/android/settings/network/ims/VtQueryImsState.java
+++ b/src/com/android/settings/network/ims/VtQueryImsState.java
@@ -20,20 +20,23 @@
 import android.telecom.TelecomManager;
 import android.telephony.AccessNetworkConstants;
 import android.telephony.SubscriptionManager;
+import android.telephony.ims.ImsException;
 import android.telephony.ims.feature.MmTelFeature;
 import android.telephony.ims.stub.ImsRegistrationImplBase;
+import android.util.Log;
 
 import androidx.annotation.VisibleForTesting;
 
 import com.android.ims.ImsManager;
 import com.android.settings.network.SubscriptionUtil;
-import com.android.settings.network.telephony.MobileNetworkUtils;
 
 /**
  * Controller class for querying VT status
  */
 public class VtQueryImsState extends ImsQueryController {
 
+    private static final String LOG_TAG = "VtQueryImsState";
+
     private Context mContext;
     private int mSubId;
 
@@ -71,14 +74,25 @@
      * @return true when Video Call can be performed, otherwise false
      */
     public boolean isReadyToVideoCall() {
+        if (!isProvisionedOnDevice(mSubId)) {
+            return false;
+        }
+
         final ImsManager imsManager = getImsManager(mSubId);
         if (imsManager == null) {
             return false;
         }
 
-        return imsManager.isVtEnabledByPlatform()
-                && isProvisionedOnDevice(mSubId)
-                && MobileNetworkUtils.isImsServiceStateReady(imsManager);
+        if (!imsManager.isVtEnabledByPlatform()) {
+            return false;
+        }
+
+        try {
+            return isServiceStateReady(mSubId);
+        } catch (InterruptedException | IllegalArgumentException | ImsException exception) {
+            Log.w(LOG_TAG, "fail to get Vt service status. subId=" + mSubId, exception);
+        }
+        return false;
     }
 
     /**
diff --git a/tests/robotests/src/com/android/settings/network/ims/MockVtQueryImsState.java b/tests/robotests/src/com/android/settings/network/ims/MockVtQueryImsState.java
index 4fd7d0c..3daf6cb 100644
--- a/tests/robotests/src/com/android/settings/network/ims/MockVtQueryImsState.java
+++ b/tests/robotests/src/com/android/settings/network/ims/MockVtQueryImsState.java
@@ -17,6 +17,7 @@
 package com.android.settings.network.ims;
 
 import android.content.Context;
+import android.telephony.ims.ImsException;
 
 import com.android.ims.ImsManager;
 
@@ -29,6 +30,7 @@
     private Boolean mIsTtyOnVolteEnabled;
     private Boolean mIsProvisionedOnDevice;
     private Boolean mIsEnabledByUser;
+    private Boolean mIsServiceStateReady;
 
     /**
      * Constructor
@@ -68,6 +70,19 @@
         return super.isProvisionedOnDevice(subId);
     }
 
+    public void setServiceStateReady(boolean isReady) {
+        mIsServiceStateReady = isReady;
+    }
+
+    @Override
+    boolean isServiceStateReady(int subId) throws InterruptedException, ImsException,
+            IllegalArgumentException {
+        if (mIsServiceStateReady != null) {
+            return mIsServiceStateReady;
+        }
+        return super.isServiceStateReady(subId);
+    }
+
     public void setIsEnabledByUser(boolean enabled) {
         mIsEnabledByUser = enabled;
     }
diff --git a/tests/robotests/src/com/android/settings/network/telephony/VideoCallingPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/network/telephony/VideoCallingPreferenceControllerTest.java
index c766289..04fc4b9 100644
--- a/tests/robotests/src/com/android/settings/network/telephony/VideoCallingPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/network/telephony/VideoCallingPreferenceControllerTest.java
@@ -27,7 +27,6 @@
 import android.telephony.CarrierConfigManager;
 import android.telephony.TelephonyManager;
 import android.telephony.ims.ProvisioningManager;
-import android.telephony.ims.feature.ImsFeature;
 
 import androidx.preference.PreferenceScreen;
 import androidx.preference.SwitchPreference;
@@ -98,7 +97,7 @@
 
         doReturn(true).when(mImsManager).isVtEnabledByPlatform();
         mQueryImsState.setIsProvisionedOnDevice(true);
-        doReturn(ImsFeature.STATE_READY).when(mImsManager).getImsServiceState();
+        mQueryImsState.setServiceStateReady(true);
         doReturn(true).when(mTelephonyManager).isDataEnabled();
 
         mController.mCallState = TelephonyManager.CALL_STATE_IDLE;