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I have a UPS for my router and modem; what I've learned is that while a UPS can last for hours powering those things, the upstream battery at the cable company only lasts an hour.

That's one advantage of DSL over cable: the telephone is considered critical infrastructure and does stay up much longer than an hour.

I didn't realize that cable stayed up at all. That was one condition of switching to VoIP: my wife insisted that 911 from wired phones must continue to work through a power outage.

I live in a rural area that is getting creeping suburbia (hence the cable). The phone lines/DSL, sadly, are out about as often as the power, and slower to get fixed. Power at the CO doesn't matter if the line maintenance isn't up to snuff.

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