[whpalmer4]

There's nothing stopping you from categorizing your calls as work-related and personal, and working either a subset or the whole. Works just fine, and I use the technique all the time.

David Allen is still very active, and even uses those new-fangled computer things now. Oddly enough, while he has plenty to say about many topics, I have yet to see any suggestion that he thinks a single context for an action isn't sufficient...