diff --git a/overlay/packages/services/Telephony/res/xml/telephony_injection.xml b/overlay/packages/services/Telephony/res/xml/telephony_injection.xml
new file mode 100644
index 0000000..6773494
--- /dev/null
+++ b/overlay/packages/services/Telephony/res/xml/telephony_injection.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (c) 2019 The Linux Foundation. All rights reserved.
+  Not a Contribution.
+
+  Copyright (C) 2018 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: customized component factory to inject,
+        e.g. "example.package.exampleTelephonyComponentFactory"
+     jar: jar path to customized jar which contains exampleTelephonyComponentFactory to inject, and
+     "/system/framework/" should be the target directory.
+        e.g. "/system/framework/eg-telephony-common.jar"
+-->
+<injection package="com.qualcomm.qti.internal.telephony.QtiTelephonyComponentFactory"
+           jar="/system/framework/qti-telephony-common.jar:/product/framework/qti-telephony-hidl-wrapper.jar:/product/framework/qti-telephony-utils.jar:/system/framework/qti-telephony-utils.jar">
+    <components>
+        <!-- Components use injected component factory,
+            e.g. com.android.internal.telephony.ServiceStateTracker
+        -->
+        <!--<component>com.example.componentA</component>-->
+        <!--<component>com.example.componentB</component>-->
+        <component>com.android.internal.telephony.ServiceStateTracker</component>
+        <component>com.android.internal.telephony.SubscriptionController</component>
+        <component>com.android.internal.telephony.SubscriptionInfoUpdater</component>
+        <component>com.android.internal.telephony.GsmCdmaPhone</component>
+        <component>com.android.internal.telephony.PhoneSwitcher</component>
+        <component>com.android.internal.telephony.IccPhoneBookInterfaceManager</component>
+        <component>com.android.internal.telephony.dataconnection.DcTracker</component>
+        <component>com.android.internal.telephony.RIL</component>
+        <component>com.android.internal.telephony.TelephonyComponentFactory</component>
+    </components>
+</injection>