Keep in mind that with the addition of service packs and cumulative updates, Microsoft has the opportunity to sneak in missing features and nuances to the product as well.
If you are a first time visitor, to make your first time experience as enjoyable as possible we ask that you adhere to these simple commonsense rules. Chat room safety is YOUR responsibility, not ours, so we strongly urge that you also read our Chat Room Safety Guide as soon as possible.
This option fits either the Standard or Enterprise Edition deployment of Lync Server 2013.
Optionally, you can deploy the SQL Server database on the same server that hosts the back-end database for Lync Server 2013 Enterprise Edition.
Each server can support up to 20,000 users, which makes the Persistent Chat pool capable of supporting up to 80,000 users.