diff --git a/core/res/res/values-mcc310-mnc160/config.xml b/core/res/res/values-mcc310-mnc160/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc160/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc200/config.xml b/core/res/res/values-mcc310-mnc200/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc200/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc210/config.xml b/core/res/res/values-mcc310-mnc210/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc210/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc220/config.xml b/core/res/res/values-mcc310-mnc220/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc220/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc230/config.xml b/core/res/res/values-mcc310-mnc230/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc230/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc240/config.xml b/core/res/res/values-mcc310-mnc240/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc240/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc250/config.xml b/core/res/res/values-mcc310-mnc250/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc250/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc270/config.xml b/core/res/res/values-mcc310-mnc270/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc270/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc300/config.xml b/core/res/res/values-mcc310-mnc300/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc300/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc310/config.xml b/core/res/res/values-mcc310-mnc310/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc310/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc490/config.xml b/core/res/res/values-mcc310-mnc490/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc490/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc530/config.xml b/core/res/res/values-mcc310-mnc530/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc530/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc580/config.xml b/core/res/res/values-mcc310-mnc580/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc580/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc590/config.xml b/core/res/res/values-mcc310-mnc590/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc590/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc640/config.xml b/core/res/res/values-mcc310-mnc640/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc640/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc660/config.xml b/core/res/res/values-mcc310-mnc660/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc660/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>
diff --git a/core/res/res/values-mcc310-mnc800/config.xml b/core/res/res/values-mcc310-mnc800/config.xml
new file mode 100644
index 0000000000000..28cd695331972
--- /dev/null
+++ b/core/res/res/values-mcc310-mnc800/config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2013, 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 my 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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Configure mobile network MTU. Carrier specific value is set here.
+    -->
+    <integer name="config_mobile_mtu">1440</integer>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>