<p>The term <span class="reference">PBX</span> is used here to describe a telephone system. This refers 
to any of a range of a multiline telephone  systems typically used in 
business environments, encompassing systems ranging from small key 
systems to large scale private branch exchanges (PBX).</p>

<p>TIM Enterprise supports a large number of PBXs. For a <b>full list of supported PBXs</b>, please have a look <a href="http://www.tri-line.com/en/products/pbx_compatibility.php">here</a>.</p>

<img class="screenshot border" src="http://www.tri-line.com/common/img/documentation/tim_enterprise/pbx/avaya_ip_office_5.png" alt="PBX panel" />