diff --git a/common.mk b/common.mk
index 47f50462..1299409b 100644
--- a/common.mk
+++ b/common.mk
@@ -501,6 +501,10 @@ PRODUCT_COPY_FILES := \
 PRODUCT_COPY_FILES += device/qcom/common/media/media_profiles.xml:system/etc/media_profiles.xml \
                       device/qcom/common/media/media_codecs.xml:system/etc/media_codecs.xml
 
+# enable overlays to use our version of
+# source/resources etc.
+PRODUCT_PACKAGE_OVERLAYS := device/qcom/common/overlay
+
 # include additional build utilities
 -include device/qcom/common/utils.mk
 
diff --git a/overlay/packages/apps/Phone/res/values/config.xml b/overlay/packages/apps/Phone/res/values/config.xml
new file mode 100644
index 00000000..412728ae
--- /dev/null
+++ b/overlay/packages/apps/Phone/res/values/config.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--Copyright (c) 2012, Code Aurora Forum. All rights reserved.
+
+    Not a Contribution, Apache license notifications and license are retained
+    for attribution purposes only.
+
+    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.
+-->
+
+<!-- Phone app resources that may need to be customized
+     for different hardware or product builds. -->
+<resources>
+    <!-- Flag indicating if the phone is a world phone -->
+    <bool name="world_phone">true</bool>
+
+    <!-- Determine whether calls to mute the microphone in PhoneUtils
+         are routed through the android.media.AudioManager class (true) or through
+         the com.android.internal.telephony.Phone interface (false). -->
+    <bool name="send_mic_mute_to_AudioManager">true</bool>
+
+    <!-- Flag indicating if the tty is enabled -->
+    <bool name="tty_enabled">true</bool>
+
+</resources>