ring-android/app/src/main/res/layout/dialog_conference.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    
    <TextView
        android:id="@+id/create_conf"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Create conference with:" />

    <ListView
        android:id="@+id/concurrent_calls"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:clickable="true"
        android:focusable="true"
        android:focusableInTouchMode="true" />
    
     <TextView
        android:id="@+id/empty_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="No other calls pending"
        android:gravity="center" />
    

</LinearLayout>