ZyXEL Communications ISG50-ISDN Application Note page 80

Example:
Below are the CLI commands to change the configuration for block time.
The default value is 60 minutes.
pbx attack-prevent web-login block-time <1-1440 min>
pbx attack-prevent sip block-time <1-1440 min>
Below are the CLI commands to change the configuration for number of failed access attempts.
The default value is 3.
pbx attack-prevent web-login fail-access <1-10>
pbx attack-prevent sip fail-access <1-10>
Check the locked extension list.
show pbx attack-prevent web-login lock-list
show pbx attack-prevent sip lock-list
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