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. . . Allowing or requiring callbacks
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You can use callbacks as a security measure: e.g; require a
callback to a phone number you specify. Or you can use
callbacks to save money, as when you are connecting to
your office from a hotel room.
You can set callback options when you secure your com-
puter using the Log-in List. Specify a different option for
each entry in the list if necessary.
To set callback options:
1 Click the Security button on the LinkBar.
2 Ensure that Log-in List (Protected System) is selected and
click the Log-in List button.
3 Click the Add button to create an entry in the Log-in List.
TIP If you want to change an existing entry, highlight it in
the list of current users and click the Edit button.
4 Click the Modem Callback tab.
5 Click one of these options:
• None Prevents callbacks.
• Optional, Any Number Lets the guest user decide
whether to be called back; users who choose to be
called back can specify the number to dial. This is the
most flexible of all the options.
• Optional, Specified Number Only Lets the guest
user decide whether to be called back to the number
you specify or to open the connection without any
callback. Only the number you specify in the Phone
Number box can be dialed for the callback.
• Required, Any Number Requires guest user to be
called back but allows them to specify the number to
be dialed. The number can vary from session to ses
-
sion.
• Required, Specified Number Only Requires the
guest user to be called back to the number you spec
-
ify in the Phone Number box.
6 If you clicked either of the options for which you must specify
a phone number, type that number in the Phone Number
box.
Type the entire number, including any prefixes or suffixes
necessary to dial the remote computer from this one.
(Your Dialing Properties settings do not apply here.)
TIP Do not require callbacks from computers that con-
nect by running Xchange Agents. The agents will not finish
because they cannot perform callbacks.