Avaya Communication Manager Administrator's Manual page 391

6. On the Feature Access Code
Origination Access Code, and the Data Privacy Access Code fields, change from the
default or remove them.
Note:
These codes, when dialed, return system dial tone or direct access to outgoing
Note:
trunking facilities. Transfers to these codes can take place via an unsecured
vector with "collect digits" steps or an unsecured voice mail system.
7. Restrict Call Forwarding Off Net on every class of service.
See Class of Service
Note:
You cannot administer loop-start trunks if Call Forwarding Off Net is required.
Note:
8. If loop start trunks are administered on Communication Manager and cannot be changed by
the Local Exchange Company, block all class of service from forwarding calls off-net. In the
Class of Service screen, Restriction Call Fwd-Off Net field, set to y for the 16 (0-15) COS
numbers.
See Class of Service
Note:
If a station is call forwarded off-net and an incoming call to the extension
Note:
establishes using a loop-start trunk, incorrect disconnect supervision can occur at
the Local Exchange Central Office when the call terminates. This gives the caller
recall or transfer dial tone to establish a fraudulent call.
9. Administer Call Detail Recording on all trunk groups to record both incoming and outgoing
calls.
See Collecting Information About Calls
10. On the Route Pattern
allow access to outgoing trunking facilities. Avaya recommends assigning routes with an
FRL of 1 or higher.
Note:
An exception might be assigning a route pattern with an FRL of 0 to be used for
Note:
911 calls so even restricted users may dial this in emergencies.
Tip:
You can use the list route-pattern print command to print a copy of
Tip:
your FRLs and check their status.
11. On all trunk group screens, set the Dial Access field to n. If set to y, it allows users to dial
Trunk Access Codes, thus bypassing all the ARS call screening functions.
See the Trunk Group
12. On the AAR and ARS Digit Analysis Table
conduct business to den (deny).
screen, Facility Test Calls Access Code, the Data
on page 784 for more information on Class of Service.
on page 784 for more information.
on page 585 for more information.
screen, be careful assigning route patterns with an FRL of 0; these
section of the Screen Reference for more information.
on page 663, set all dial strings not required to
System Security Checklist
Issue 1 June 2005 391