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Originally posted by tw
As noted, bandwidth exists everywhere except in the last mile.
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Actually, no. There's lots of bandwidth available on the last mile, for most people. Most broadband users are not using all they can get on the last mile. Why? Because the major bottleneck is a bit further up. There's tons and tons of long-haul bandwidth, not to mention plenty of dark fiber if there was a real shortage. But getting from the CO to that bandwidth is a big problem. Note that this is all packet-switched data.
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Why no quality voice on the internet? The existing (some not implemented due to no demand) technology is stifled by a severe shortage of broadband access.
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The internet is based on IP. IP is inherently not well suited for voice and other low-latency isocronous data. Circuit-switched technologies react to increased utilization the proper way for voice; IP does not.