End users can specify whether other end users can see their presence. By default, all end users can access the presence information of all other end users. End users can also set exceptions for denying this access to certain end user and groups.
If an end user has denied other end users from accessing the end user’s presence status, then that end user’s availability status appears as offline in other end user's contact lists. No alerts or chat invitations can be sent to an end user whose presence status is offline.
User privacy can be configured using the User Settings window in the Instant Messenger. For more information on configuring user privacy, see Instant Messenger Online Help.