<para>Return codes:</para>
<itemizedlist>
<listitem>
	<para>
	<emphasis role='bold'>1</emphasis> - contacts found and successfully
	pushed as branches.  Contacts which required awakening prior to being
	reachable are being notified via async Push Notifications.
	</para>
</listitem>
<listitem>
	<para>
	<emphasis role='bold'>2</emphasis> - successfully started at least one
	async Push Notification for the found contacts, however no extra branches
	were populated (i.e. there is no need to call t_relay()).
	</para>
</listitem>
<listitem>
	<para>
	<emphasis role='bold'>-1</emphasis> - no contact found.
	</para>
</listitem>
<listitem>
	<para>
	<emphasis role='bold'>-2</emphasis> - contacts found, but neither of them
	supports the current SIP method.
	</para>
</listitem>
<listitem>
	<para>
	<emphasis role='bold'>-3</emphasis> - internal error during processing.
	</para>
</listitem>
</itemizedlist>
