About time for home UPSes to make an impact?
All this talk of VoIP and emergency calls makes me think of availability (and, as some have said, how you can't generally use VoIP phones when the power's out). Why not solve this problem with a solution readily available? For example, my parents are slightly ahead of the curve in that they have a UPS just for their DSL router, Dad's two SANs and our DECT base station. It's one of those little APC units with three-pin sockets (four battery backup, four surge protected only). I also have a UPS but it's IEC-style connectors for me, I don't have a VoIP phone yet anyway.
We have five of them at work though, and I keep on trying to persuade my boss to invest in a couple of UPSes - he won't for the time being. UPSes should be offered as part of a home voice package in my opinion, it's safer, effectively adds insurance to your electronic kit and is just a good thing to have, so if they don't cost much these days why doesn't an ISP take the reins on this one and start to recommend them for anybody who's buying a VoIP system (or just buying new internet kit?)