Well, that was timely, had a post ready to go and the comcast went down TV & web, TV came back, not web until a while later.. Cellular never blinked, just a little training on how to flip back n forth..
Anyway, dialup should have been kept as a backup.
When we'd go to the family cabin outside Sonora, no cell service, just a landline until recently as my brother passed away, they dropped it, so now only texts that may slip out if you are on this or that corner of the deck!
What we need is an added port on the Sirius satellite receiver in my truck! Or a portable Hot Spot from them!
iPad never has supported dialup, I tried, asked a lot of folks, developers, at the old MacWorld, never found a solution, but I did have a dongle just in case...
I kept the list of dialup numbers a long time, not sure any work today...