Windows phone app, how to use narrator read page title automatically?

I'm developing windows universal app(XAML,C#) on phone, and am enabling accessibility for Narrator. Does anybody know how to get narrator automatically to read page title when a page is opened?

I tried setting automationproperties.name in page but didn't work:

<Page
x:Class="xxxxxx"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
AutomationProperties.Name="Page title to be read"
Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">