Which level you choose depends on how much information about yourself you want
each contact to see. Keep in mind that each presence level in this structure corresponds to
one of the containers we discussed previously. Also remember that each container is associated
with a particular amount of information about a user. You may want to assign some people to
one level where they may be able to see only your name, job title, company, and e-mail
address. At the same time, you might want other people to be assigned to another level where
they might, for example, be able to see only your home and mobile phone numbers.
OCS 2007 keeps all of its clients notifi ed of all presence-level changes, depending on the
containers for which each client has permission. For example, as you move from one part of
town to another as you travel, your supervisor and your spouse can be notifi ed of your
movements, whereas everyone else without those necessary permissions for that container
are not notifi ed. OCS 2007 supports this capability through the use of access control lists
(ACLs) that are based on these containers and categories we??™ve discussed.
There are fi ve basic ACLs, listed here from most restrictive to least restrictive:
?– Blocked Here, only the name and e-mail information can be seen by those you??™ve
given access.
?– Public With this ACL, only the name/e-mail and basic contact information can
be seen.
?– Company Here, the name/e-mail, basic contact information, and detailed contact
information are available to those who have access.
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