res/values/config.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2014 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.
-->

<!-- Telecomm resources that may need to be customized for different hardware or product
    builds. -->
<resources>
    <!-- Determines if the current device should allow emergency numbers to be logged in the
         call log. Some carriers require that emergency calls *not* be logged, presumably to
         avoid the risk of accidental redialing from the call log UI.
         The default is false. -->
    <bool name="allow_emergency_numbers_in_call_log">false</bool>

    <!-- Determine whether we want to play local DTMF tones in a call, or just let the radio/BP
         handle playing of the tones. -->
    <bool name="allow_local_dtmf_tones">true</bool>

    <!-- Class name for the default in-call UI Service [DO NOT TRANSLATE] -->
    <string name="incall_default_class" translatable="false">com.android.incallui.InCallServiceImpl</string>

    <!-- Class name for the default main dialer activity [DO NOT TRANSLATE] -->
    <string name="dialer_default_class" translatable="false">com.android.dialer.DialtactsActivity</string>

    <!-- Flag indicating if the tty is enabled -->
    <bool name="tty_enabled">true</bool>

    <!-- Flag indicating whether audio should be routed to speaker when docked -->
    <bool name="use_speaker_when_docked">true</bool>

    <!-- Flag indicating whether allow (silence rather than reject) the incoming call if it has a
         different source (connection service) from the existing ringing call when reaching
         maximum ringing calls. -->
    <bool name="silence_incoming_when_different_service_and_maximum_ringing">false</bool>

    <!-- Determines if the granting of temporary location permission to the default dialer
         during an emergency call should be allowed. -->
    <bool name="grant_location_permission_enabled">false</bool>

    <!-- When true, a simple full intensity on/off vibration pattern will be used when calls ring.

         When false, the vibration effect serialized in the raw `default_ringtone_vibration_effect`
         resource (under `frameworks/base/core/res/res/raw/`) is used. Devices should overlay this
         value based on the type of vibration hardware they employ. -->
    <bool name="use_simple_vibration_pattern">false</bool>

    <!-- Threshold for the X+Y component of gravity needed for the device orientation to be
         classified as being on a user's ear. -->
    <item name="device_on_ear_xy_gravity_threshold" format="float" type="dimen">5.5</item>

    <!-- Lower threshold for the Y-component of gravity needed for the device orientation to be
         classified as being on a user's ear. If the Y-component is less than this negative value,
         the device is probably upside-down and therefore not on a ear -->
    <item name="device_on_ear_y_gravity_negative_threshold" format="float" type="dimen">-1</item>

    <!-- When true, an option is shown in the call blocking screen which allows the user to block
         all incoming calls from callers not in their contacts. -->
    <bool name="show_option_to_block_callers_not_in_contacts">false</bool>

    <!-- When true, the options in the call blocking settings to block restricted and unknown
         callers are combined into a single toggle. -->
    <bool name="combine_options_to_block_restricted_and_unknown_callers">true</bool>

    <!-- When set, Telecom will attempt to bind to the {@link CallDiagnosticService} implementation
         defined by the app with this package name. -->
    <string name="call_diagnostic_service_package_name"></string>

    <!-- When true, the options in the call blocking settings to block unavailable and unknown
     callers are combined into a single toggle. -->
    <bool name="combine_options_to_block_unavailable_and_unknown_callers">true</bool>

    <!-- When true, skip fetching quick reply response -->
    <bool name="skip_loading_canned_text_response">false</bool>

    <!-- When set, telecom will skip fetching incoming caller info for this account -->
    <string name="skip_incoming_caller_info_account_package"></string>

    <string-array name="system_bluetooth_stack_package_name" translatable="false">
        <!-- AOSP -->
        <item>com.android.bluetooth</item>
        <!-- Used for internal targets -->
        <item>com.google.android.bluetooth</item>
    </string-array>
</resources>