well i asked again down here, they generally turn off all AC loss signals, as well our power goes out every other day anyway. Hurricanes just kill everything so it is a different situation. Our power goes out with the first thunder crack, even if it is just a small storm.
I sometimes think, though we have second hand Electric Generators here from the 1950''s purchased from some other third world country in south america, they must have glass break detectors installed on them, cause as soon as you hear thunder, bang goes the electric ... stays off for hours a time .. it just sucks bigtime! I cant keep count this summer, it is just too much :-(
Most CS's down here dont have more than 3000 clients max, so it is not that big a deal, but they still turn them off apparently, due to our frequent power outages.
If you have 10,000+ clients then certainly you can afford more phones and receivers to cover these issues anyway right??