Internode (arguably the best ISP in Australia) has this device for AUD$199 (and I hear people pay upwards of $150 for a ripoff ATA... and they aren't even POE (power-over-ethernet) devices - you have to plug them into a GPO (general-power-outlet)).
So, it begs the question, why are Kiwis not being smarter and buying VOIP enabled routers, like these ones:
I am looking at a naked DSL solution for my Aunt and Slingshot are pushing ATAs, and I'm like "wtf, just give me a configured DSL voip router that allows me to plug in a single analogue phone". But, they say that their models don't support that. So, "provide ones that DO".
Any reason why this ISP is not providing options to customers?