A server community is a group of people belonging to the same directory or user registry, such as your corporate directory, or external server communities outside of your organization. Your administrator determines which server communities are available to you.
You might be able to add one or more of these server communities to your client. Then you can add the people in these server communities to your Sametime contact list so that you chat with them.
Your system administrator might also connect one of your server communities to one or more public instant messaging networks. This allows you to chat with members of these networks.
Parent topic: Get connected