Western Telematic MPC-20VS16-3 - Manual (Page 49)

5-18
Basic Configuration
5.3.5. 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 MPC 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 5.5. To
configure and enable the Callback function, proceed as follows:
• Text Interface: Type /F and press [Enter] to access the System Parameters menu,
then type 6 and press [Enter] to display the Callback Security Menu.
• Web Browser Interface: Move the cursor over the General Parameters link on the
left hand side of the screen. When the fly-out menu appears, click on the "Callback
Security" link to display the Callback Security Menu.
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 and a Callback will
not be performed.
◆
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 and a Callback will not be performed.
◆
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 user 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.