Snom have a beta version of IPv6 capable firmware for their SIP phones.
This is for Snom 7xx and 8xx phones.
The magic is that this firmware is dual stack. It runs IPv4 and IPv6 at the same time. It works well. I’m really impressed – this has got to make a Snom the most capable IPv6 SIP phone on the market today.
If you have an IPv6 capable network and SIP server, then please do test it out. Let Tim@ProVu know your feedback.