Hello, I've followed every step that I know I should have, I'm attempting to setup remote extensions (6, STUN) to connect to our PBX - no matter what I try they fail to register. They are Yealink T48Gs. I can get softphone mobile clients to register just fine, but ONLY when they are off of the local network, using their LTE. Does anyone know if there are local ports I should be forwarding? When I attempt an autoprovision with the phones, they say they are provisioning but then say "update skipped". Since the client off of the wifi is working, it seems that the PBX is working okay, I'm just not sure what I'm doing wrong on our local network. Thanks in advance.