First off you need a NON telecom broadband service, I chose wired country via Compass Communictions because its a high speed 2mbit/256k wireless service with about 12ms latency (very important, this is the time it takes for you computer to send information to the excahnge and get a reply back, too high latency and its like talking over a bad satellite line to a villager in botswana).
Im paying $75 inc GST for 10GB of traffic which is dearer than telecom Jetstream for the equivalent plan, however it works out cheaper once you combine it with the italk.co.nz VOIP service at $10 per month.
Telecom Line plus 10GB ADSL is $40+$60 = $100
Italk.co.nz Line plus 10GB Wired Country is $75+10 = $85
Hardware costs are;
$300 for wired country antenna installed on a one year contract (they own the unit)
$120 for 3Com Ethernet Router 3CR858-91 (yes there are other brands, but evrything else in that price range is SHIT, I know I've used most of them).
$120 for Linksys PAP2T VOIP Phone Adapter with 2 Phone Ports (i.e. can have 2 seperate lines with different numbers), the verdicts still out on the Linksys, because well its linksys and may go up in smoke anyday now, but so far its working fine.
Oh and Faxing is out, you need a VOIP line with "DATA Quality" which I dont belive italk currently provide so no dialup modems or Faxes, alarm systems should be fine as they use DTMF.
Hope that helps.
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