Avaya Site Administration Reference Release 3.1 Manual de usuario Pagina 117

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Avaya Site Administration Reference
107
8 Monitor traffic and system activity for suspicious call patterns.
Use your traffic reports and call detail records to monitor call activity. Activate
features that deny access to your system when unauthorized attempts are detected.
9 Provide physical security for telecommunications assets.
Restrict unauthorized access to equipment rooms and wire connection closets. Keep
translation backups, system manuals, and reports in a safe place.
10 Educate system users to recognize toll fraud activity and react appropriately.
Train your users how to protect themselves from inadvertent compromises to system
security.
11 Monitor call traffic over vectors.
Vector fraud is one of the most common types of toll fraud because vectors route
calls based on the class of restriction (COR) assigned to the VDN. Refer to BCS
Products Security Handbook or your Avaya representative for more information. If
you do not have a copy, you can order one from the Publications Center.
Using Call Detail Recording reports to detect problems
Call Detail Recording (CDR) collects detailed information about calls handled by your
system. This CDR information can be sent directly to a printer or into call accounting
software. You can use the printed CDR output or call accounting reports to monitor calls
on your system and look for possible toll fraud problems.
Review your call accounting reports or CDR output each day to help detect possible toll
fraud. When reviewing these records, look for:
unusual calling patterns
numerous calls to the same number
calls outside of normal business hours
long calls
calls to suspicious destinations, including international calls not typical for your business
patterns of authorization code usage (same code used simultaneously or high activity)
high numbers of "ineffective call attempts" indicating attempts at entering invalid codes
undefined account codes
attempts to change the access code or to use an invalide access code when using
conferencing feature
If you are unfamiliar with reading CDR printed output, youll want to refer to the
description of CDR in the Administrators Guide for Avaya Communication Manager
Software.
If your organization uses call accounting software to analyze your CDR output, you
probably receive formatted reports that list the information you need to detect possible toll
fraud. If you have questions about reading your call accounting reports, refer to your call
accounting software manuals.
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