Lucent Technologies Definity Enterprise Communication Server 8.2 User Manual
DEFINITY ECS Release 8.2
Administrator’s Guide
Administrator’s Guide
555-233-506
Issue 1
April 2000
Enhancing system security
311
System security checklist
11
5. If you use vectors:
a. Assign all Vector Directory Numbers (VDN) a unique COR. Refer
to DEFINITY ECS Guide to ACD Call Centers for more
information.
information.
NOTE:
The COR associated with the VDN dictates the calling privileges of
the VDN/vector. High susceptibility to toll fraud exists on vectors
that have “collect digits” steps. When a vector collects digits, it
processes those digits back to the switch and if the COR of the VDN
allows it to complete the call off-net, it will do so. For example, the
announcement “If you know your party’s 4-digit extension number,
enter it now” results in 4 digits being collected in step 6. If you input
“90##” or “900#”, the 4 digits are analyzed and if “9” points towards
ARS and “0” or “00” is assigned in the ARS Analysis Tables and the
VDN COR allows it, the call routes out of the switch to an outside
local exchange or long distance operator. The operator then connects
the call to the requested number.
the VDN/vector. High susceptibility to toll fraud exists on vectors
that have “collect digits” steps. When a vector collects digits, it
processes those digits back to the switch and if the COR of the VDN
allows it to complete the call off-net, it will do so. For example, the
announcement “If you know your party’s 4-digit extension number,
enter it now” results in 4 digits being collected in step 6. If you input
“90##” or “900#”, the 4 digits are analyzed and if “9” points towards
ARS and “0” or “00” is assigned in the ARS Analysis Tables and the
VDN COR allows it, the call routes out of the switch to an outside
local exchange or long distance operator. The operator then connects
the call to the requested number.
b. If vectors associated with the VDN do not require routing the call
off-net or via AAR, assign a unique COR where the FRL is
0
, the
Calling Party Restriction field is
outward
, the Calling Permissions
field is
n
on all unique Trunk Group COR.
c. If the vector has a “route-to” step that routes the call to a remote
switch via AAR, assign a unique COR with a unique ARS/AAR
Partition Group, the lowest FRL to complete an AAR call, and
Partition Group, the lowest FRL to complete an AAR call, and
n
on
all unique COR assigned to your public network trunking facilities
on the Calling Permissions. Assign the appropriate AAR route
patterns on the AAR Partition Group using the
on the Calling Permissions. Assign the appropriate AAR route
patterns on the AAR Partition Group using the
change aar analysis
partition x 2
command.
Tip:
You can use the
display aar analysis print
command to print
a copy of your Automatic Alternate Routing (AAR) setup
before making any changes. You can use the printout to correct
any mistakes.
before making any changes. You can use the printout to correct
any mistakes.
d. If the vector has a “route-to” step that routes the call to off-net,
assign a unique COR with a unique ARS/AAR Partition Group, the
lowest FRL to complete an ARS call, and
lowest FRL to complete an ARS call, and
n
on all unique COR
assigned to your public network trunking facilities on the Calling
Permissions. Assign the appropriate complete dial string in the
“route-to” step of the vector the unique ARS Partition Group using
the
Permissions. Assign the appropriate complete dial string in the
“route-to” step of the vector the unique ARS Partition Group using
the
change ars analysis partition x 2
command.