It was THEIR fault!
Friday evening, Husband spent an hour on the phone, working his way up through the chain of command till he got someone who could authorize a Verizon repairmen to come to the house on Saturday morning instead of waiting till next Thursday. The repairman checked us out and the problem was not with our phone, not with the line, not with the jack. IT WAS WITH VERIZON. Yes, one of their people had hit the wrong switch and turned us into a dial phone instead of a touch phone, knocking us off the grid.
Now about those TV channels that aren't coming in . . . .