Group based presence availability management

摘要

A presence management system allows or blocks access to presence information at a group-level. A subscriber assigns contacts to groups and sets presence access parameters for the groups. In response to a request for the presence information, the presence management system determines a contact group assigned to the requester and checks the group access parameter. Access is allowed or blocked based on the group access parameter and based on overriding access parameters that may be established in the presence management system.