MyPBX U100&U200 Administrator's Guide
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192.168.5.136.
Figure I-11
4. Set up Proper Firewall Rules
Note: Please backup the configurations on backup and restore page before you
go ahead. In the case that you lock the device, you can reset to factory default
and restore the previous configurations. The example rules below work with
MyPBX firmware version 2.15.xx.xx or higher versions.
Step 1. Enable firewall on firewall page of MyPBX.
SystemFirewall Settings Firewall RulesGeneral Settings