We’ve been having trouble with a SonicWall for some remote extensions with not ringing and I’m thinking of trying to put the binded SIP port back to the original 5060 (currently 5080). I was thinking of adding the following iptables rule to allow the extensions we haven’t updated yet to still work with the server as we go through all the remote extensions and change them over to 5060 throughout the workday. I’ve tested and it seems to work okay, but wondering if there may be some issues I’m not thinking of?
-A PREROUTING -i eth0 -p udp -m udp --dport 5080 -j REDIRECT --to-ports 5060