[Tex/LaTex] How to enumerate the items in beamer table of contents

beamertable of contents

I'm inserting a \tableofcontents slide in my beamer presentation. The trouble is that I have everything in itemize environment throughout my presentation. (Gives a better view to the audience.) The Table of Contents, however appears without the itemization/enumeration. Can the entries in tableofcontents be itemized? I can't find an option in beamer manual or online to this effect.

Here's my current table of contents: 

\begin{frame}<beamer>
  \frametitle{Outline}
  \tableofcontents[section,subsection]
\end{frame}

p.s. I'm also using the \AtBeginSection overlays so those have to change as well.

Best Answer

Adapted from the beamer user guide, section 10.5:

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\documentclass{beamer}
\setbeamertemplate{section in toc}[sections numbered]
\setbeamertemplate{subsection in toc}[subsections numbered]
%\setbeamertemplate{section in toc}[ball unnumbered]
%\setbeamertemplate{subsection in toc}[ball unnumbered]
\AtBeginSection[]
{
\begin{frame}
\frametitle{Outline}
\tableofcontents[currentsection]
\end{frame}
}
\begin{document}
\begin{frame}
  \frametitle{Outline}
  \tableofcontents[section,subsection]
\end{frame}
\section{One}
\begin{frame}
Some content
\end{frame}
\subsection{Alpha}
\begin{frame}
Some content
\end{frame}
\section{Two}
\begin{frame}
Some content
\end{frame}
\subsection{Beta}
\begin{frame}
Some content
\end{frame}
\end{document}
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