res/xml/account_audio_prefs.xml

<?xml version="1.0" encoding="utf-8"?>
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Copyright (C) 2004-2013 Savoir-Faire Linux Inc.                     
                                                                    
Author: Alexandre Lision <alexandre.lision@savoirfairelinux.com>                   
                                                                    
This program is free software; you can redistribute it and/or modify
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<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >

    <PreferenceCategory
        android:id="@+id/audio_dtmf_category"
        android:title="DTMF" >
        <ListPreference
            android:id="@+id/account_dtmf_type"
            android:entries="@array/dtmf_types_entries"
            android:entryValues="@array/dtmf_types_values"
            android:key="Account.dtmfType"
            android:persistent="false"
            android:title="DTMF Type" />
    </PreferenceCategory>
    <PreferenceCategory
        android:id="@+id/audio_ringtone_category"
        android:title="Ringtones" >
        <CheckBoxPreference
            android:id="@+id/audio_ringtone"
            android:key="Account.ringtoneEnabled"
            android:persistent="false"
            android:title="Activate ringtones " />

        <EditTextPreference
            android:id="@+id/audio_ringtone"
            android:key="Account.ringtonePath"
            android:enabled="false"
            android:persistent="false"
            android:title="Ringtone" />
    </PreferenceCategory>

</PreferenceScreen>