Instruction manual

Detecting toll fraud
Issue 9 May 2003
5-55
Traffic measurements and performance
By tracking traffic measurements on the trunk groups, you can watch for
unexplained increases in call volume, particularly during off-peak hours. Review
the traffic measurements for the following symptoms of abuse:
■ Unusually high peg counts (number of times accessed) on trunk groups
■ A series of short or long holding times that may indicate repeated attempts
to enter the system and/or success in doing so
■ High volume on WCR patterns used for 0 + and 011 + calls
■ Busiest hour for trunk group being inconsistent with business hours
■ Drastic changes in switch occupancy profile compared to a typical 24-hour
period
Monitor I
For DEFINITY G2 and System 85, the optional Monitor I tracks call volume and
alerts you when the number of calls exceeds a predetermined threshold. Monitor I
is a UNIX software package that collects measurements data from G2 and
System 85 switches, stores the results, and produces various types of analysis
reports.
With Monitor I, you can set up thresholds for expected normal traffic flow on each
of your trunk groups. The application will alert you when the traffic flow exceeds
the expected values. The data collected includes quantity and duration of
incoming and outgoing calls, processor utilization, and security violation
measurements for remote access and administration port access.
Use the
PROC400 series to turn on this report for the trunk groups.
SAT, Manager I, and G3-MT reporting
Traffic reporting capabilities are built-in and are obtained through the System
Access Terminal (SAT), Manager I, and G3-MT terminals. These programs track
and record the usage of hardware and software features. The measurements
include peg counts (number of times accessed) and call seconds of usage. Traffic
measurements are maintained constantly and are available on demand. However,
reports are not archived and should therefore be printed to monitor a history of
traffic patterns.
For Communication Manager, MultiVantage™ Software, DEFINITY ECS,
DEFINITY G1, G3, and System 75 R1V3 and later:
■ To record traffic measurements:
—Enter
change trunk-group to display the Trunk Group screen.
— In the
Measured field, enter both if you have BCMS and CMS,
internal if you have only BCMS, or external if you have only CMS.