sundance-communications.com/forum Forums TDM Business Telephone Systems Nortel Telephones & Systems hackers

any help with programming on keeping hackers from making calls through the nortel system bcm and mics

Restrict VM ports from having access to any Pools or Routs

this means i cant use outdial on vm ?

Every sight is different so you will need to do what suits the customer.

KSU/BCM:
-Disable DISA and/or change COS password to something more secure.
-Setup restriction filters and have them applied to voice mail ports/DN's.
-Setup restriction filters and have them applied to lines and/or setup COS passwords to bypass restrictions.
-Disable Allow Redirect option for all sets.
Restiction example- Restrict 0 for overseas, 1 for local long distance, 900 for billing.

Voice Mail
-NAM's and Call Pilot (Voice Messaging) run the Toll Fraud Patches, for BCM's make sure your upgraded to latest patches.
-Delete all unused mailboxes
-Have ALL users change mailbox passwords to 6 or 8 digit non-trivial passwords, including Genreal Delivery and System manager mailboxes.
-Disable Outbound Transfer/Dial/Pool Access in admin programming (COS) for each mailbox.
-Disable the "enable external initialization" feature in COS
-Setup lockup mailbox after so many unsucessfull password attempts

Turn off external transfers in CP class of service. And make sure that users of VM are using good passwords.