Binding an xml file nested in a WPF ListView form?

Question

WPF

Hello.
In a WPF project, I am loading an xml file from a remote server via http.
The structure is like this:

<subscribers>
  <subscriber>
    <fullname>FullName</fullname>
    <positionName>PositionName</positionName>
    <departamentName>DepartamentName</departamentName>
    <contacts>
        <contact type="Cell">Cell Number</contact>
        <contact type="E-Mail">[email protected]</contact>
        <contact type="Address">Country, Town, str</contact>
    </contacts>
  </subscriber>
<subscriber>
    <fullname>FullName</fullname>
    <positionName>PositionName</positionName>
    <departamentName>DepartamentName</departamentName>
    <contacts>
        <contact type="Cell">Cell Number</contact>
        <contact type="E-Mail">[email protected]</contact>
        <contact type="Address">Country, Town, str</contact>
    </contacts>
  </subscriber>
</subscribers>

There is also this XAML markup;

<ScrollViewer HorizontalAlignment="Stretch" Margin="10,50,10,10" VerticalAlignment="Stretch" VerticalScrollBarVisibility="Auto">
     <Grid x:Name="SubscribersGrid" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Margin="0,0,0,0">
         <ListView x:Name="SubscribersList" HorizontalAlignment="Stretch"  VerticalAlignment="Stretch" Margin="0,0,0,0" Opacity="0.8" BorderThickness="0" ItemsSource="{Binding}">
             <ListView.ItemTemplate>
                 <DataTemplate>
                     <Grid>
                         <Grid.ColumnDefinitions>
                             <ColumnDefinition Width="300" />
                                <ColumnDefinition Width="350" />
                                <ColumnDefinition Width="400" />
                            </Grid.ColumnDefinitions>
                            <TextBlock Text="{Binding XPath=fullname}" Grid.Column="0" />
                            <TextBlock Text="{Binding XPath=positionName}" Grid.Column="1" />
                            <Grid Grid.Column="2">
                                <ListView x:Name="ContactsList" HorizontalAlignment="Stretch"  VerticalAlignment="Stretch" Margin="0,0,0,0" Opacity="0.8" BorderThickness="0" ItemsSource="{??????????????????????????????}">
                                  <ListView.ItemTemplate>
                                      <DataTemplate>
                                          <Grid>
                                              <Grid.ColumnDefinitions>
                                                  <ColumnDefinition Width="100" />
                                                  <ColumnDefinition Width="100" />
                                              </Grid.ColumnDefinitions>
                                              <TextBlock Text="{Binding [email protected]}" Grid.Column="0" />
                                              <TextBlock Text="{Binding XPath=contact}" Grid.Column="1" />
                                          </Grid>
                                      </DataTemplate>
                                    </ListView.ItemTemplate>
                                </ListView>
                            </Grid>
                        </Grid>
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>
        </Grid>
    </ScrollViewer>

I want the Item's ContactsList to display type and value from the xml file. Please help me get it right. Thank you!