Old 05-23-2008, 08:20 AM Offline   #1 (permalink)



 
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Default VoIP As a Solution To Rural Broadband

boyko.at.netqos recommends his article up at Network Performance Daily, which notes the recent reports that up to 30% of households do not have a landline telephone, preferring a VoIP or cell-phone based solution. What to do with the miles of last-mile phone line infrastructure already in place in almost all the homes across the country? Maybe there's a solution to rural broadband by using the high-reliability frequencies reserved for voice purely for data — and using VoIP to make phone calls. From the article: "Repurposing the broadband of 0-25kHz would result in... speeds of around 14.4 kBytes/s (or 115.9 kbits/s) upload and 28.8 kBytes/s (231.3 kbits/s) download. That's not much of a speed boost. Still, if you've been plodding along on a '56.6k' modem, at speeds of 7.2kBytes/s, this would be like an oasis in the desert. And what about those phone calls? Well, if you make the same phone calls with VoIP that you were with the standard 0-4kHz landline, it would only take about 20.8kbits/s using the G.723.1 codec — that still leaves you with 80% of your broadband capacity when on the phone — and 100% of your broadband when you're off it." Only the US FCC calls 231K "broadband," but as noted it does beat dialup.
Read more of this story at Slashdot.
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