overlay/frameworks/base/core/res/res/values-mcc311-mnc180/config.xml

<?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 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>
    <!-- AT&T -->
    <string-array translatable="false" name="config_tether_usb_regexs">
    </string-array>

    <string-array translatable="false" name="config_tether_wifi_regexs">
    </string-array>

    <string-array translatable="false" name="config_tether_bluetooth_regexs">
    </string-array>

    <integer-array translatable="false" name="config_tether_upstream_types">
    </integer-array>

    <!-- Set to true if we need to not prefer an APN.
         This is being added to enable a simple scenario of pre-paid
         provisioning on some carriers, working around a bug (7305641)
         where if the preferred is used we don't try the others. -->
    <bool name="config_dontPreferApn">true</bool>

    <string name="mobile_provisioning_apn">lwaactivate</string>

    <string name="mobile_provisioning_url">
        https://buyasession.att.com/sbd/unauth/InitiateSBD.action?ICCID=%1$s&amp;IMEI=%2$s&amp;version=3.0
    </string>
</resources>