Avaya Communication Manager Administrator's Manual page 432

Enhancing System Security
15. For your AUDIX, on the System Appearance screen, set:
the Enhanced Call Transfer field to y.
●
the Transfer Type field to enhanced. If set to basic, set the Transfer Restriction field to
●
subscribers. See
information.
Note:
The COR of the voice mail ports dictates the calling restrictions of the voice mail.
Note:
If the above settings are not administered correctly, the possibility exists to
complete a transfer to trunk access codes or ARS/AAR feature codes for
fraudulent purposes. Never assign mailboxes that begin with the digits or trunk
access codes of ARS/AAR feature access codes. Require your users to use a
mailbox password length greater than the amount of digits in the extension
number.
16. Avaya recommends you administer the following on all voice mail ports:
Assign all voice mail ports a unique COR. See
●
information.
If you are not using outcalling, fax attendant, or networking, administer the unique COR
●
where the FRL is 0, the Calling Party Restriction field is outward, and all unique trunk
group COR on the Calling Permissions are n. See
more information.
Note:
Avaya recommends you administer as many layers of security as possible. You
Note:
can implement Step 9 and Step 16 as a double layer of security. In the event that
the voice mail system becomes unsecured or compromised for any reason, the
layer of security on Avaya Communication Manager takes over, and vice versa.
17. Administer all fax machines, modems, and answering machines analog voice ports as
follows:
Set the Switchhook Flash field to n.
●
Set the Distinctive Audible Alert field to n. See
●
information.
18. Install a Call Accounting System to maintain call records. In the CDR System Parameters
screen, Record Outgoing Calls Only field, set to y. See
page 794 for more information.
19. Call Accounting Systems produce reports of call records. It detects telephones that are
being hacked by recording the extension number, date and time of the call, and what digits
were dialed.
432 Administrator Guide for Avaya Communication Manager
Feature-Related System Parameters on page 972 for more
Class of Restriction on page 809 for more
Class of Restriction
Station on page 1433 for more
CDR System Parameters
on page 809 for
on