I made a huge mistake and created a monster. I built a machine and used 3 nics thinking I would isolate the phones from the business lan from the SIP provider. But its been working fine for a year now. It’s a mess but it was functional… and now I’ve forgotten all I knew.
I changed out all the very old flat network hardware today (replacing with Unifi Parts) adding vlans and now I can’t make or receive calls. I added a USG and I expect maybe the firewall defaults are not allowing connection to the SIP provider - but how can I see for certain which ETH port is for the outgoing SIP? That’s a starting point
This might be vauge but I’m exhausted, please… ask me whatever I left out.