We're in the process of a 3CX phone system rollout that will handle our remote sales. I'm using Cisco 525G2s and everything works great but they dropped off about an hour ago and I've tracked it down to an issue with the stun.3cx.com server. stun3.3cx.com works and I've verified with 3G, but the problem I have now is that all my Cisco phones have hardcoded stun.3cx.com in them. IP address: 184.108.40.206 Host name: stun.3cx.com Alias: stunserver.siptesting.net stun.3cx.com 220.127.116.11 is from United States(US) in region North America TraceRoute to 18.104.22.168 [stun.3cx.com] Hop (ms) (ms) (ms) IP Address Host name 1 0 0 0 22.214.171.124 - 2 0 0 0 126.96.36.199 xe-4-2-0.er2.dfw2.us.above.net 3 0 0 0 188.8.131.52 ge5-4.br02.dal01.pccwbtn.net 4 Timed out Timed out Timed out - 5 Timed out Timed out Timed out - 6 Timed out Timed out Timed out - Is there a better way to do this? Can I setup our own STUN server, or not use one? Or should I setup stun.ourcompany.com so I can control this through CNAME records as an alias to redirect in case something happens like this in the future? Thanks for the help, happy to be here!