diff --git a/overlay/common/packages/services/Telecomm/res/values/cm_config.xml b/overlay/common/packages/services/Telecomm/res/values/cm_config.xml
new file mode 100644
index 0000000..c208396
--- /dev/null
+++ b/overlay/common/packages/services/Telecomm/res/values/cm_config.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2015 The CyanogenMod 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.
+-->
+
+<resources>
+    <!-- Class name for the default in-call UI Service [DO NOT TRANSLATE] -->
+    <string-array name="incall_default_classes" translatable="false">
+        <item>com.android.dialer/com.android.incallui.InCallServiceImpl</item>
+        <item>com.cyngn.dialer/com.android.incallui.InCallServiceImpl</item>
+    </string-array>
+
+    <!-- Class name for the default main dialer activity [DO NOT TRANSLATE] -->
+    <string-array name="dialer_default_classes" translatable="false">
+        <item>com.android.dialer/com.android.dialer.DialtactsActivity</item>
+        <item>com.cyngn.dialer/com.android.dialer.DialtactsActivity</item>
+    </string-array>
+</resources>
diff --git a/overlay/common/packages/services/Telephony/res/values/cm_config.xml b/overlay/common/packages/services/Telephony/res/values/cm_config.xml
new file mode 100644
index 0000000..155ed8c
--- /dev/null
+++ b/overlay/common/packages/services/Telephony/res/values/cm_config.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2015 The CyanogenMod 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.
+-->
+
+<resources>
+  <string-array name="dialer_default_classes" translatable="false">
+      <item>com.android.dialer/com.android.dialer.DialtactsActivity</item>
+      <item>com.cyngn.dialer/com.android.dialer.DialtactsActivity</item>
+  </string-array>
+</resources>