Methods and systems for managing NAC privileges based on communication context awareness are provided. In one aspect, a method includes detecting, by a network server, a collaboration session between at least first and second users and retrieving, by a network server from a directory server, a first role of the first user that corresponds with privileges including a first quality of service level. Further, the network server retrieves a second role of the second user that corresponds with privileges including a second quality of service level. Also, the method includes determining that the first quality of service level is greater than the second quality of service level and assigning the second user at least the privileges corresponding to the first role. The collaboration session is conducted between the first user and the second user based on the privileges assigned to the second user that correspond to the first role.