AT&T DEFINITY Remote Port Security Device Informations techniques Page 344

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Toll Fraud Job Aids
14-2 Issue 7 June 2001
An upsurge in use on DISA or other trunks.
Unusual increase in customer premises equipment-based system memory
usage.
Unexplained changes in system software parameters.
Unexplained problems related to being locked out of the system or
Personal Identification Number (PIN) changes in the voice mail system.
Significant increase in calls from a single geographic area or from the same
Automatic Number Identification (ANI).
Any discrepancies in telephone bills, such as unusual calling patterns, calls
to international locations with which the user does not normally interact,
and calls for which you cannot account.
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