Hi All, I have a local pbx with local ip phones. Everything is working correctly and I am currently having no issues. I was playing with the new capture tool and looking at the pcap files using wireshark. I have noticed that I am getting a 407 - Proxy authentication required originating from my 3cx server to each extension that is making a call. Is this something I need to worry about or just let it go. The pbx has been online for more than 6 + months and I have not had any issues.