Since we, collectively, are steering one of the industries driving up individual utilization of the IPV4 address space as well as being one of the most sensitive to NAT which is the only way through which IPV4 has been sustained as long as it has; it seems like a worthy exercise to discuss our own, and the industries preparedness to adopt IPV6. Has anyone out there had any experience using any of the open source platforms (OpenSIPS, Asterisk, SIPPY etc) with native IPV6? It seems like these projects are the best equipped right now to handle this move since they rely heavily on the network stack of the underlying OS. Are there any endpoints or other CPE that anybody has had luck getting to work over native IPV6? So far I am unaware of any carrier grade (meaning it costs a lot of money) softswtch platforms that are ready for this, or seem like they would be without a multi-year effort. Anybody out there that can enlighten us on this one? Any experience with SBC's or border elements that are or will be ready to handle IPV6 in deployment (either native 6 to 6 or 6 to 4 through a b2bua) Finally any comments or thoughts on the whole topic, I am interested to see other opinions and approaches to the topic.