diff --git a/device-redfin.mk b/device-redfin.mk
index e60b488..5f9d8a8 100644
--- a/device-redfin.mk
+++ b/device-redfin.mk
@@ -34,6 +34,9 @@ PRODUCT_SOONG_NAMESPACES += \
 
 DEVICE_PACKAGE_OVERLAYS += device/google/redfin/redfin/overlay
 
+PRODUCT_PACKAGES += \
+    TelephonyOverlay2020Redfin
+
 # Audio XMLs for redfin
 ifeq ($(wildcard vendor/google_fih/redfin/factory/prebuilt/ftm.mk),)
 PRODUCT_COPY_FILES += \
diff --git a/rro_overlays/TelephonyOverlay/Android.bp b/rro_overlays/TelephonyOverlay/Android.bp
new file mode 100644
index 0000000..74a0651
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/Android.bp
@@ -0,0 +1,26 @@
+//
+// 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.
+//
+
+runtime_resource_overlay {
+    name: "TelephonyOverlay2020Redfin",
+    resource_dirs: ["res"],
+    certificate: "platform",
+    product_specific: true,
+    aaptflags: ["--auto-add-overlay"],
+    manifest: "AndroidManifest.xml",
+    theme: "TelephonyOverlay2020Redfin",
+}
+
diff --git a/rro_overlays/TelephonyOverlay/AndroidManifest.xml b/rro_overlays/TelephonyOverlay/AndroidManifest.xml
new file mode 100644
index 0000000..e3662bc
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2019 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.
+-->
+<!-- Pixel specific wifi overlays -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.telephony.resources.pixel"
+    android:versionCode="1"
+    android:versionName="1.0">
+    <application android:hasCode="false" />
+    <overlay
+      android:targetPackage="com.android.telephony.resources"
+      android:targetName="TelephonyCustomization"
+      android:isStatic="true"
+      android:priority="0"/>
+</manifest>
+
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc204-mnc04/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc204-mnc04/donottranslate_config.xml
new file mode 100644
index 0000000..4eef2d0
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc204-mnc04/donottranslate_config.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+
+    <!-- Use ERI text for network name on CDMA LTE -->
+    <bool name="config_LTE_eri_for_network_name">false</bool>
+
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc310-mnc004/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc310-mnc004/donottranslate_config.xml
new file mode 100644
index 0000000..4eef2d0
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc310-mnc004/donottranslate_config.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+
+    <!-- Use ERI text for network name on CDMA LTE -->
+    <bool name="config_LTE_eri_for_network_name">false</bool>
+
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc310-mnc120/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc310-mnc120/donottranslate_config.xml
new file mode 100644
index 0000000..b940d41
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc310-mnc120/donottranslate_config.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+
+    <!-- Sometimes, PDU has garbages. So, need to use valid index -->
+    <integer name="config_valid_wappush_index">4</integer>
+
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc310-mnc260/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc310-mnc260/donottranslate_config.xml
new file mode 100644
index 0000000..4cb6c79
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc310-mnc260/donottranslate_config.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+    <!-- Configure mobile tcp buffer sizes in the form:
+         rat-name:rmem_min,rmem_def,rmem_max,wmem_min,wmem_def,wmem_max
+         If no value is found for the rat-name in use, the system default will be applied.
+    -->
+    <string-array name="config_mobile_tcp_buffers">
+        <item>umts:21135,131070,1056768,6144,24576,165312</item>
+        <item>hspa:18300,131070,1056768,6144,24576,393216</item>
+        <item>hsdpa:18300,131070,1056768,6144,24576,393216</item>
+        <item>hsupa:6141,131070,1056768,6144,24576,393216</item>
+        <item>hspap:31455,131070,1830912,6144,24576,1830912</item>
+        <item>edge:8192,26280,704512,4096,16384,110208</item>
+        <item>gprs:8192,8760,704512,4096,8760,110208</item>
+        <item>lte:2097152,4194304,8388608,262144,524288,1048576</item>
+    </string-array>
+
+
+</resources>
+
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc310-mnc410/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc310-mnc410/donottranslate_config.xml
new file mode 100644
index 0000000..65a7fc1
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc310-mnc410/donottranslate_config.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+    <!-- Configure mobile tcp buffer sizes in the form:
+         rat-name:rmem_min,rmem_def,rmem_max,wmem_min,wmem_def,wmem_max
+         If no value is found for the rat-name in use, the system default will be applied.
+    -->
+    <string-array name="config_mobile_tcp_buffers">
+        <item>umts:131072,262144,1452032,4096,16384,399360</item>
+        <item>hspa:131072,262144,1452032,4096,16384,399360</item>
+        <item>hsdpa:131072,262144,1452032,4096,16384,399360</item>
+        <item>hsupa:131072,262144,1452032,4096,16384,399360</item>
+        <item>hspap:131072,262144,1452032,4096,16384,399360</item>
+        <item>edge:4093,26280,35040,4096,16384,35040</item>
+        <item>gprs:4092,8760,11680,4096,8760,11680</item>
+        <item>evdo:4094,87380,262144,4096,16384,262144</item>
+        <item>lte:524288,1048576,8388608,262144,524288,4194304</item>
+    </string-array>
+
+</resources>
\ No newline at end of file
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc311-mnc480/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc311-mnc480/donottranslate_config.xml
new file mode 100644
index 0000000..4eef2d0
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc311-mnc480/donottranslate_config.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+
+    <!-- Use ERI text for network name on CDMA LTE -->
+    <bool name="config_LTE_eri_for_network_name">false</bool>
+
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc312-mnc530/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc312-mnc530/donottranslate_config.xml
new file mode 100644
index 0000000..b940d41
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc312-mnc530/donottranslate_config.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+
+    <!-- Sometimes, PDU has garbages. So, need to use valid index -->
+    <integer name="config_valid_wappush_index">4</integer>
+
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc01/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc01/donottranslate_config.xml
new file mode 100644
index 0000000..8c0c020
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc01/donottranslate_config.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+    <bool name="config_auto_attach_data_on_creation">false</bool>
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc02/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc02/donottranslate_config.xml
new file mode 100644
index 0000000..8c0c020
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc02/donottranslate_config.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+    <bool name="config_auto_attach_data_on_creation">false</bool>
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc03/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc03/donottranslate_config.xml
new file mode 100644
index 0000000..8c0c020
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc03/donottranslate_config.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+    <bool name="config_auto_attach_data_on_creation">false</bool>
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc07/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc07/donottranslate_config.xml
new file mode 100644
index 0000000..8c0c020
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc07/donottranslate_config.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+    <bool name="config_auto_attach_data_on_creation">false</bool>
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc11/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc11/donottranslate_config.xml
new file mode 100644
index 0000000..8c0c020
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc11/donottranslate_config.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+    <bool name="config_auto_attach_data_on_creation">false</bool>
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc71/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc71/donottranslate_config.xml
new file mode 100644
index 0000000..8c0c020
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc71/donottranslate_config.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+    <bool name="config_auto_attach_data_on_creation">false</bool>
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc72/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc72/donottranslate_config.xml
new file mode 100644
index 0000000..8c0c020
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc72/donottranslate_config.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+    <bool name="config_auto_attach_data_on_creation">false</bool>
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc90/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc90/donottranslate_config.xml
new file mode 100644
index 0000000..8c0c020
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values-mcc505-mnc90/donottranslate_config.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2016, 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.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized
+     for different hardware and product builds. -->
+<resources>
+    <bool name="config_auto_attach_data_on_creation">false</bool>
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values/donottranslate_arrays.xml b/rro_overlays/TelephonyOverlay/res/values/donottranslate_arrays.xml
new file mode 100644
index 0000000..41dc40a
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values/donottranslate_arrays.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2019 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.
+-->
+
+<resources>
+    <!-- Device-specific array of SIM slot indexes which are are embedded eUICCs.
+         e.g. If a device has two physical slots with indexes 0, 1, and slot 1 is an
+         eUICC, then the value of this array should be:
+             <integer-array name="non_removable_euicc_slots">
+                 <item>1</item>
+             </integer-array>
+         If a device has three physical slots and slot 1 and 2 are eUICCs, then the value of
+         this array should be:
+             <integer-array name="non_removable_euicc_slots">
+                <item>1</item>
+                <item>2</item>
+             </integer-array>
+         This is used to differentiate between removable eUICCs and built in eUICCs, and should
+         be set by OEMs for devices which use eUICCs. -->
+    <integer-array name="non_removable_euicc_slots">
+        <item>1</item>
+    </integer-array>
+</resources>
diff --git a/rro_overlays/TelephonyOverlay/res/values/donottranslate_config.xml b/rro_overlays/TelephonyOverlay/res/values/donottranslate_config.xml
new file mode 100644
index 0000000..05c9ca3
--- /dev/null
+++ b/rro_overlays/TelephonyOverlay/res/values/donottranslate_config.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * Copyright (C) 2019 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.
+ */
+-->
+<resources>
+    <!-- MMS user agent string -->
+    <string name="config_mms_user_agent" translatable="false">g020i</string>
+    <!-- MMS user agent profile url -->
+    <string name="config_mms_user_agent_profile_url" translatable="false">http://www.gstatic.com/android/sms/G020I.xml</string>
+</resources>