My phone is fixed.
The repairman showed up at 9 am sharp when I was supposed to start writing so I’m getting a late start today. Apparently the lightning fried the filter that separates data from voice transmissions, which also explains why I still had internet service but no phone service. Once that was fixed, I discovered that my two downstairs phones had also been fried. I do have working phone service now though, using my old upstairs phone that’s probably 25 years old. I do miss my cordless! I’ll have to replace it ASAP, but I’m relieved that I won’t have to worry about this any longer.