XMPP
Lync Server has an XMPP gateway server to federate with external XMPP servers.
The ejabberd XMPP server has a bridge that enables federation with OCS servers, without gateways (transports).
Read more about this topic: Microsoft Lync Server
XMPP
Lync Server has an XMPP gateway server to federate with external XMPP servers.
The ejabberd XMPP server has a bridge that enables federation with OCS servers, without gateways (transports).
Read more about this topic: Microsoft Lync Server