I've been having a few phone issues that look to me like NAT or other LAN problems. The symptoms include a long wait before ringing starts, some calls that dropped the moment I picked up, a fair number of blocked outbound ICMP (type 3) packets -- "destination unreachable," I think -- and others. Much of this is fairly random.

Any problem with my enabling the STUN setting in vPanel to see whether the service improves? I run other adapters, and all do pretty well with STUN, even where the provider would normally provision with an outbound proxy server.

Since this setting, unlike others, is user configurable within vPanel, I assume I am free to try it. But I wanted to check first regarding the experiences of others.