Instruction manual
Detecting toll fraud
Issue 9 May 2003
5-57
For Communication Manager, MultiVantage™ Software, DEFINITY ECS, 
DEFINITY G1, G3, and System 75:
■ Enter change system-parameters feature to display the 
Features-Related System Parameters screen.
■ Enter y in the Automatic Circuit Assurance (ACA) Enabled field.
■ Enter local, primary, or remote in the ACA Referral Calls field. If 
primary is selected, calls can be received from other switches. Remote 
applies if the PBX being administered is a DCS node, perhaps unattended, 
that wants ACA referral calls to go to an extension or console at another 
DCS node.
■ Complete the following fields as well: ACA Referral Destination, 
ACA Short Holding Time Originating Extension, ACA Long 
Holding Time Originating Extension
, and ACA Remote PBX 
Identification
.
■ To review and verify the entries, enter list aca-parameters.
■ Enter change trunk group to display the Trunk Group screen.
■ Enter y in the ACA Assignment field.
■ Establish short and long holding times. The defaults are 10 seconds (short 
holding time) and one hour (long holding time).
■ To review an audit trail of the ACA referral call activity, enter list 
measurements aca.
For DEFINITY G2 and System 85:
■ Use PROC285 WORD1 FIELD5 and PROC286 WORD1 FIELD1 to enable 
ACA system-wide.
■ Use P120 W1 to set ACA call limits and number of calls thresholds.
■ Choose the appropriate option:
— To send the alarms and/or reports to an attendant, use 
PROC286 
WORD1 FIELD3
.










