You know, it's been decades and all I remember is the functionality rather than the implementation. It can't have just been some built-in Wake on Ring because I knew I had to do quite a bit of work to make it function (all just a matter of putting things together not that I wrote any code).

But an amusing follow-up is that I remember going to the Red Hat offices in Raleigh for an interview for an internship and actually describing the implementation as one of the things I'd done with a computer when I was much younger. It can't have been anything impressive because it didn't land with the interviewer. Silly naïveté of a child to think that's the kind of story you tell.

Probably all for the best in the end.