+An example of this protocol can be seen in Figure~\ref{fig:examplexmpp}: after
+both clients have opened their streams, the client requests the momentary values
+for power and energy from the node named \emph{Device04}. The device first
+acknowledges this request, and, after retrieving the values, sends them back
+to the client.
+
+\input{fig-example-xmpp-stream.tex}
+