Cause More than ten calls have been blacklisted within 15 minutes.
Type 3 (Processing error alarm)
Action The alarm clears automatically when the number of blacklisted
calls drops below eight. Be alert for a potential hacker into the system
and also following information from release notes :
Provisioning Whitelist and Blacklist Screening
You can provision whitelists or blacklists to include or exclude calls
from certain numbers. You can provision whitelists that allow calls from specified A-numbers or to
specified B-numbers. Blacklists block calls from specified A-numbers or to specified B-numbers.
To provision a whitelist or blacklist, you must complete the following procedures:
Create the list file
Add numbers to the list file
Process the list file
The alarm is related to the failed screening in the whitelist.
Any number not in the white list is treated as black list.
If you want to see which numbers are failing then you will have to perform an MDL trace and then determine if these number need to be added to your white list or if they are just being blocked like they are supposed to.
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