said by garys_2k:That's the set up here. The pairs go to remote cabinets and digitized. When the batteries die it's all over for the land line. said by Msradell: said by KirkyInCT:
During the power outages last year, it eventually faded, but a land line would have been gone sooner.
A traditional POTS line will never go out during a power outage.
For many of us those good old days are long gone. No longer do all the pairs necessarily go back to the C.O. where the banks of batteries and diesel generators stand ready to ride out a power failure. Many urban and suburban areas now terminate the copper in remote cabinets, digitize the signals and send them over fiber to the C.O. Those cabinets have backup power measured in hours.