I'm curious. I have been reading in forum threads where users have problems connecting SIP trunks through Sophos UTM with the VoIP Helper.
I have an Asterisk PBX and just input my SIP Trunks providers networks into the VoIP "Server Server Network" input and my PBX IP in the SIP Client Networks input and my PBX seems to be working perfectly. I didn't open any additional ports on the firewall nor did I do any type of port forwarding.
Am I missing something or am I in for some kind of funky behavior with the SIP connection?
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