reply to kvnpark
Re: Best Options for Small Business Internet Due to #4, you'd be looking at fibre, $1000-1200 per month. I don't think you're going to get that sort of commitment from anybody selling DSL or cable, because they don't have any control over when it gets fixed.
The rest of your requirements can easily be met by any DSL or cable wholesaler, since your requirements are minimal (4 simultaneous VoIP calls require 384 Kbps of upstream, if I'm not mistaken)
Developer: Tomato/MLPPP, Linux/MLPPP, etc »fixppp.org