phone/res/xml/gsm_umts_additional_options.xml

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:phone="http://schemas.android.com/apk/res/com.android.phone2"
     android:title="@string/additional_gsm_call_settings">

    <com.android.phone2.CLIRListPreference
        android:key="button_clir_key"
        android:title="@string/labelCallerId"
        android:persistent="false"
        android:defaultValue="DEFAULT"
        android:entries="@array/clir_display_values"
        android:entryValues="@array/clir_values"
        android:dialogTitle="@string/labelCallerId"/>

    <com.android.phone2.CallWaitingCheckBoxPreference
        android:key="button_cw_key"
        android:title="@string/labelCW"
        android:persistent="false"
        android:summaryOn="@string/sum_cw_enabled"
        android:summaryOff="@string/sum_cw_disabled"/>
</PreferenceScreen>