MR> AFAIK, none of the affordable VoIP-ATAs supports IPv6. Even MR> Grandstream's new HT802 doesn't. The WellGate 2522 with IPv6 support MR> costs around EUR 200 and seems to be one of the cheapest in that MR> class.
EUR 200 is too much.
MR> Or maybe a Fritzbox?
I have one in the junkbox, a FON WLAN 7340. Found it in the second life shop for EUR 5. I am afraid - if it can do what I want - it is a bit of an overkill.
MvdV>> Does anyone have experience with VOIP equipment that supports MvdV>> IPv6?
MR> Yes :)
But you found no easy cheap replacement for the Linksys PAP 2T. I had a look at the Linksys SPA 112, the successor of the Linksys PAP. Cisco claims it is upgradable to IPv6, but that seems to be an empty claim.