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Working configuration for 3CX PBX - Static port mapping

Hello,

Does anyone ever tryed to configure an UTM for 3CX PBX ?

I'm unable to pass the Firewall Check, probably because of the NAT rules.

In other word : how can I ensure that all SIP communication (port 5060 TCP/UDP for example) will keep port 5060 on both source and destination ?

Thanks in advance for your help.



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