What ports should I enable for the ApplianX gateway in my firewall?

For the Admin interface it’s port 80, and also port 443 for RA units only.

For the voice ports, firstly you must enable the RTP port ranges, which are 16387 - 17407 and 17411 - 18431. You should also enable your SIP port which by is usually 5060, and 5061 for secure traffic (RA units), but these can be configured so you may have them set to something else. Finally you’ll also need to enable your configured syslog destination port and SNMP destination ports if you have any set up.