6-13
Configuration Options
6.2.4. Callback Security
The Callback function provides an additional layer of security when callers attempt to
access command mode via modem. When this function is properly configured, modem
users will not be granted immediate access to command mode upon entering a valid
password; instead, the unit will disconnect, and dial a user-defined number before
allowing access via that number. If desired, users may also be required to re-enter the
password
after
the VMR/NPS dials back.
In order for Callback Security to function properly, you must first enable and configure
the feature via the System Parameters menu as described in this section, and then
define a callback number for each desired user account as described in Section 6.4.
To access the Callback Security menu via the Text Interface, type
/F
and press
[Enter]
and then select the Callback Security option. To access the Callback Security menu
via the Web Browser Interface, place the cursor over the General Parameters link, wait
for the flyout menu to appear, and then Click on the "Callback Security" link. In both
the Text Interface and Web Browser Interface, the Callback Security Menu offers the
following options:
•
Callback Enable:
This prompt offers five different configuration options for the
Callback Security feature: (Default = On - Callback (Without Password Prompt.)
Off:
All Callback Security is disabled.
On - Callback (Without Password Prompt):
Callbacks will be performed for
user accounts that include a Callback Number, and the login prompt will
not
be
displayed when the user’s modem answers. If the account
does not
include a
Callback Number, that user will be granted immediate access.
On - Callback (With Password Prompt):
Callbacks will be performed for user
accounts that include a Callback Number, and the login prompt
will
be displayed
when the user’s modem answers (accounts that include a Callback Number will
be required to re-enter their username/password when their modem answers.) If
the account
does not
include a Callback Number, then that user will be granted
immediate access.
On - Callback ONLY (Without Password Prompt):
Callbacks will be performed
for user accounts that include a Callback Number, and the username/password
prompt will
not
be displayed when the user’s modem answers. Accounts that
do not
include a Callback Number will
not
be able to access command mode via
modem.
On - Callback ONLY (With Password Prompt):
Callbacks will be performed for
accounts that include a Callback Number, and the username/password prompt
will
be displayed when the user’s modem answers (users will be required to re-
enter their username/password when their modem answers.) Accounts that
do
not
include a Callback Number will
not
be able to access command mode
via modem.
