Here's an interesting idea...I got in contact directly with Vonage yesterday, as I subscribe to their service, asking about their current or future plans to support IPv6 for their service. I did so as I've signed up for Comcast's public IPv6 trials for this year and next. And I saw that one of their possible tests involves a setup where there may not be a public IPv4 address assigned to any of my equipment. Now everything I own that HAS to connect to the Internet is dual-stack capable with the exception of my Vonage adapter.
Because of the sad news I received from them in an email stating they don't currently support IPv6 even in a testing form, nor do they have any plans in the near future to support it...this begs the question...For those of us who wish to make use of a nearly IPv6 only network at home, how would DS-Lite or a CGN affect certain services such as an IPv4 only VoIP service that normally requires some fine-tuning of one's router/gateway/firewall to operate correctly?
If it weren't for that, I wouldn't care about loosing a public IPv4 address if I could get native v6 at home. I would never likely need a printer to be accessible via the Internet (would likely firewall it if it did support v6) and other things like consoles probably would have little problem with DS-Lite or CGN if they require no configuration of my current NAT box.
So does anyone have any insight about how DS-Lite or a CGN would affect something like Vonage, and does SIP support IPv6 and are their any good SIP to PSTN carriers that support IPv6?