Installation guide

MyPBX U300 Administrator's Guide
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Figure G-14 Add Remote Extension IP in Whitelist
Step4.Configure auto blacklist rules
Auto blacklist rules: the Server would add the IP address to the blacklist
automatically if the number of the packets it sends exceeds the rule you
configured.
1) Add two auto blacklist rules for port: 5060.
Rule No.1:
Port: 5060
Protocol: UDP
IP Packets: 120
Time Interval: 60 seconds
Figure G-15 Add Auto Blacklist Rule for SIP Packets
Rule No.2:
Port: 5060
Protocol: UDP
IP Packets: 40
Time Interval: 2 seconds