I can't seem to get my Televantage VOIP phone system to work behind Untangle...
Well, it can make SIP outbound calls just fine to the ITSP. That's all we personally use it for.
BUT.. I have cases where I need SIP clients off our network to register to the server as external extensions.
For the life of me, I can't get them to register. I even manually port forwarded 5060 and RTP ports. That has worked with even $50 linksys firewalls in the past. I turned off ALL racks in Untangle, still no go.
Yes, untangle is VOIP friendly if you're connecting to an off-site server using a Softphone or Hardphone.... but I'm really pissed off at this crap that it doesn't work if the SIP server is behind Untangle and people are trying to connect to it offsite.
They need to specify that in the manuals and advertisements. VOIP Friendly, as long as you're not the one with the server.
I've been using untangle now for over a year. If I had to start all over, I would have just bought an SSG 20. Untangle is a great idea, but it's still years behind the competition.
/rant