said by mmainprize:
I am sure it could be done as all local customer are on a Network and a Network message could be sent out to all connected systems on the network. This is possible with today's software (wall command), but it might require some testing and supporting firmware in the modems.
How would the message sent to a modem get to the end users on PCs, TVs, tablets, smartphones, game systems, VOIP, etc.? Would the modem intercept packets? Which packets?
How would you narrow down the message to only the affected customers? What or who would initiate the alert?
These things aren't nearly as easy as one might think. Just the variety of systems involved becomes mind boggling. I've seen this same issue brought up time and again for over a dozen years...--
If it's important, back it up... twice. Even 99.999% availability isn't enough sometimes.