Anyway, yesterday I got around to buying a new headset. I got the least-expensive one they had, just as I tend to get the least-feature-ridden phones they offer. But I'm glad of one feature on the new headset, which is a button that allows me to answer and hang up the phone without having to remove it from my holster. I'd been troubled that to answer a call, I had to deholster it to open the case, after which I would stick it back in the holster. I'm not sure if that was violating the hands-free law or not. Now it's not an issue.
As I drive quite a bit during work hours on account of working mornings at home and then driving to the office, I want to be accessible by phone while driving if necessary.