One of the knocks against AT&T CallVantage was that it doesn't work behind your existing home router/firewall. Their nemesis, Vonage, is able to handle being behind or in front of a firewall - a huge competitive advantage, especially for the security-conscious techies that don't like having any device in the front of the firewall.
Well, Andy Abramson brought to my attention that this is no longer the case - AT&T CallVantage does indeed support being connected behind a firewall, as confirmed by this AT&T CallVantage How To link: AT&T CallVantage
Though I did read somewhere else that contradicts this and it stated that AT&T DOES NOT support having the telephone adaptor (TA) behind the router/firewall, but that they "will soon support such a configuration".
I guess AT&T is moving so fast to add features and functionality to CallVantage the left hand doesn't know what the right hand is doing!
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I have ATT CallVantage working behind a router. I had to forward a few ports but it is now work. Make sure you have QoS on the router or you will drop calls.
can you help me!
Hi,
I have my T/A behind the router, works great. In fact, I went so far as to put two T/A's behind a single router.
The instructions are at: http://www.gerbernetwork.com/scgerber/2005/01/steve-tries-att-callvantage.htm
By the way, AT&T supports 'behind the firewall' what they don't do is guarantee the voice quality when you put the T/A in that configuration. I've got 256Kbps upload bandwidth, and so far, two T/A's, along with Xbox live have worked pretty well.
Steve