Hey everyone, We have a 3CX server that is currently going through an InGate firewall because back in V12, Gamma was not supported as a SIP trunk provider. They are now in V14+ and we are looking to change the SIP trunk settings in 3CX to point directly at Gamma. The problem is when I delete the old SIP trunk (the one pointed at the InGate) I lose all the Inbound Rules. I have exported them from the Inbound Rules page but when I try to import them back in I get an error message against every number saying the following columns caused the failure (PORTS/MASK). Has anyone else had experience in moving SIP trunk provides? Many thanks!