I am replacing an old firewall (Cisco ASA) with a Sophos SG. I have set the SG with the same firewall and DNAT rules as the old firewall, but the 2 IP phones that are in remote locations are not working - they cannot connect to the office and the office…

Hello, I've scoured through all the sophos, reddit and internet forums I can, but I'm at my wits end here. Equipment: SG-125 (Latest Patches) Internet Service: 1Gbps down, 50 mbps up (approximately) Public IP Address Available: 5 total, 3 are available…