Technical information

Small Business Communications Systems
5-48 Issue 7 June 2001
d. Make allowed list for outcalling numbers.
e. Make sure no other ARS tables have FRL of 2 or less.
f. Make allowed list and add to voice ports on:
 Merlin Mail, Merlin Legend Mail, Merlin Messaging: if a 2 or 4
port system: last port only, the others should be changed to 0.
If a 6 port system, the last 2 ports should be changed to
FRL=0.
 Audix – all ports.
 Auto Attendant – not applicable.
Make disallowed lists for voice ports.
1. Make disallowed lists.
a. See “Toll Fraud Disallow List Information” for specifics on entries.
b. If customer is using 800 numbers or skypager numbers do not add
800 numbers.
2. Assign all voice mail ports to disallowed lists.
Restrict ARS Table 19: Dial 0 Output.
1. Remove pool from table if dial 0 for local operator is not needed.
2. Customer can always dial 9-1010288 for AT&T access code, or they may
dial the Sprint, MCI, etc. access code if they prefer.
3. Change FRL from 3 to 4 or greater, and change FRL on extension that
need access to operator from 3 or 4 to greater number (match FRL of table
19).
Check night service exclusion list. Remove voice ports from list if they are in the
list.
Audix. Check with toll fraud specialists in integrated solutions for securing Audix.
Merlin Mail, Merlin Legend Mail, Merlin Messaging.
1. Change password for mailboxes to the maximum digit length and change
frequently.
2. Change password for general mailbox to the maximum digit length and
change frequently.
3. Change the system administrator extension number from 9997 to
something else.
4. Change password for system administrator extension number (9997) to the
maximum digit length and change frequently.
5. Remove ALL mailboxes not used.