Comment Radio is the best option for disaster preparedness (Score 1) 582
Eh. POTS may be slightly less vulnerable to system failure than cellular, but not much. And you're depending on physical wire which is more susceptible to damage. If you're really concerned about emergency communication capability, radio is the only way to go. No centralized ANYTHING, no infrastructure of any kind, and (with a bit of forethought) can work indefinitely, entirely off the grid. Go get your ham radio license.