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\author{\begin{tabular}{cc}
Henning Schulzrinne & Jonathan Rosenberg \\
Dept. of Computer Science & Bell Laboratories \\
Columbia University & Lucent Technologies \\
{\sf hgs@cs.columbia.edu} & {\sf jdrosen@bell-labs.com} \\
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\title{The Title of the Paper}
\begin{document}

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\begin{abstract}
An abstract; with no references.
\end{abstract}

\section{Introduction}
\label{sec:intro}

\section{Conclusion}
\label{sec:conclusion}
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